cleaning up osr pt1

atom/browser/api/atom_api_web_contents.cc

@@ -70,9 +70,7 @@
 
 #include "content/browser/web_contents/web_contents_impl.h"
 #include "atom/browser/osr_web_contents_view.h"
-
+#include "atom/browser/osr_render_widget_host_view.h"
-#include "content/browser/web_contents/web_contents_impl.h"
-#include "atom/browser/osr_web_contents_view.h"
 
 #include "atom/common/node_includes.h"
 
@@ -291,7 +289,7 @@ WebContents::WebContents(v8::Isolate* isolate,
   else if (options.Get("isBackgroundPage", &b) && b)
     type_ = BACKGROUND_PAGE;
   else if (options.Get("offscreen", &b) && b)
-    type_ = OFF_SCREEN;  
+    type_ = OFF_SCREEN;
 
   // Obtain the session.
   std::string partition;
@@ -316,16 +314,19 @@ WebContents::WebContents(v8::Isolate* isolate,
     params.guest_delegate = guest_delegate_.get();
     web_contents = content::WebContents::Create(params);
   } else if(IsOffScreen()) {
-		content::WebContents::CreateParams params(session->browser_context());
+    content::WebContents::CreateParams params(session->browser_context());
 
     auto view = new OffScreenWebContentsView();
     params.view = view;
     params.delegate_view = view;
 
     web_contents = content::WebContents::Create(params);
-		view->SetWebContents(web_contents);
+    view->SetWebContents(web_contents);
-	} else {
+
-		content::WebContents::CreateParams params(session->browser_context());
+    paint_callback_ = base::Bind(&WebContents::OnPaint, base::Unretained(this),
+      isolate);
+  } else {
+    content::WebContents::CreateParams params(session->browser_context());
     web_contents = content::WebContents::Create(params);
   }
 
@@ -401,6 +402,14 @@ void WebContents::OnCreateWindow(const GURL& target_url,
     Emit("new-window", target_url, frame_name, disposition);
 }
 
+void WebContents::RenderViewReady() {
+  if (IsOffScreen()) {
+    const auto rwhv = web_contents()->GetRenderWidgetHostView();
+    auto osr_rwhv = static_cast<OffScreenRenderWidgetHostView *>(rwhv);
+    osr_rwhv->SetPaintCallback(&paint_callback_);
+  }
+}
+
 content::WebContents* WebContents::OpenURLFromTab(
     content::WebContents* source,
     const content::OpenURLParams& params) {
@@ -1226,30 +1235,12 @@ void WebContents::BeginFrameSubscription(mate::Arguments* args) {
 
   const auto view = web_contents()->GetRenderWidgetHostView();
   if (view) {
-    // std::unique_ptr<FrameSubscriber> frame_subscriber(new FrameSubscriber(
+    std::unique_ptr<FrameSubscriber> frame_subscriber(new FrameSubscriber(
-    //     isolate(), view, callback, only_dirty));
+        isolate(), view, callback, only_dirty));
-    // view->BeginFrameSubscription(std::move(frame_subscriber));
+    view->BeginFrameSubscription(std::move(frame_subscriber));
-    paint_isolate_ = args->isolate();
-
-    auto v = static_cast<OffScreenWindow *>(view);
-    paint_callback_ = base::Bind(&WebContents::OnPaint,
-      base::Unretained(this));
-    v->SetPaintCallback(&paint_callback_);
   }
 }
 
-void WebContents::OnPaint(
-    const gfx::Rect& damage_rect,
-    int bitmap_width,
-    int bitmap_height,
-    void* bitmap_pixels) {
-
-  v8::MaybeLocal<v8::Object> buffer = node::Buffer::New(paint_isolate_
-    , (char *)bitmap_pixels, sizeof(bitmap_pixels));
-
-  Emit("paint", damage_rect, bitmap_width, bitmap_height, buffer.ToLocalChecked());
-}
-
 void WebContents::EndFrameSubscription() {
   const auto view = web_contents()->GetRenderWidgetHostView();
   if (view)
@@ -1396,6 +1387,19 @@ v8::Local<v8::Value> WebContents::Debugger(v8::Isolate* isolate) {
   return v8::Local<v8::Value>::New(isolate, debugger_);
 }
 
+void WebContents::OnPaint(
+    v8::Isolate* isolate,
+    const gfx::Rect& damage_rect,
+    int bitmap_width,
+    int bitmap_height,
+    void* bitmap_pixels) {
+  v8::MaybeLocal<v8::Object> buffer = node::Buffer::New(isolate
+    , (char *)bitmap_pixels, sizeof(bitmap_pixels));
+
+  Emit("paint", damage_rect, bitmap_width, bitmap_height,
+       buffer.ToLocalChecked());
+}
+
 // static
 void WebContents::BuildPrototype(v8::Isolate* isolate,
                                  v8::Local<v8::ObjectTemplate> prototype) {

atom/browser/api/atom_api_web_contents.h

@@ -18,7 +18,7 @@
 #include "native_mate/handle.h"
 #include "ui/gfx/image/image.h"
 
-#include "atom/browser/osr_window.h"
+#include "atom/browser/osr_output_device.h"
 
 namespace blink {
 struct WebDeviceEmulationParams;
@@ -145,7 +145,7 @@ class WebContents : public mate::TrackableObject<WebContents>,
   // Subscribe to the frame updates.
   void BeginFrameSubscription(mate::Arguments* args);
   void EndFrameSubscription();
-  void OnPaint(const gfx::Rect&, int, int, void*);
+  void OnPaint(v8::Isolate*, const gfx::Rect&, int, int, void*);
 
   // Dragging native items.
   void StartDrag(const mate::Dictionary& item, mate::Arguments* args);
@@ -157,7 +157,7 @@ class WebContents : public mate::TrackableObject<WebContents>,
   // Methods for creating <webview>.
   void SetSize(const SetSizeParams& params);
   bool IsGuest() const;
-  
+
   bool IsOffScreen() const;
 
   // Callback triggered on permission response.
@@ -272,6 +272,7 @@ class WebContents : public mate::TrackableObject<WebContents>,
   void MediaStartedPlaying(const MediaPlayerId& id) override;
   void MediaStoppedPlaying(const MediaPlayerId& id) override;
   void DidChangeThemeColor(SkColor theme_color) override;
+  void RenderViewReady() override;
 
   // brightray::InspectableWebContentsDelegate:
   void DevToolsReloadPage() override;
@@ -309,8 +310,6 @@ class WebContents : public mate::TrackableObject<WebContents>,
   v8::Global<v8::Value> devtools_web_contents_;
   v8::Global<v8::Value> debugger_;
 
-  v8::Isolate* paint_isolate_;
-
   std::unique_ptr<WebViewGuestDelegate> guest_delegate_;
 
   // The host webcontents that may contain this webcontents.

atom/browser/api/atom_api_web_contents_mac.mm

@@ -4,9 +4,9 @@
 
 #include "atom/browser/api/atom_api_web_contents.h"
 
-// @interface NSWindow
+@interface NSWindow
-// - (BOOL)isKeyWindow;
+- (BOOL)isKeyWindow;
-// @end
+@end
 
 namespace atom {
 

atom/browser/native_window_views.cc

@@ -57,8 +57,6 @@
 #include "ui/views/widget/desktop_aura/desktop_native_widget_aura.h"
 #endif
 
-#include <iostream>
-#include "atom/browser/osr_window.h"
 #include "content/public/browser/render_widget_host.h"
 #include "content/public/browser/render_view_host.h"
 #include "content/public/browser/context_factory.h"

atom/browser/osr_output_device.h

@@ -17,8 +17,6 @@ typedef base::Callback<void(const gfx::Rect&,int,int,void*)> OnPaintCallback;
 
 class OffScreenOutputDevice : public cc::SoftwareOutputDevice {
 public:
-  typedef base::Callback<void(const gfx::Rect&,int,int,void*)>
-      OnPaintCallback;
 
   OffScreenOutputDevice(bool transparent, const OnPaintCallback& callback);
   ~OffScreenOutputDevice();

atom/browser/osr_render_widget_host_view.cc

@@ -2,7 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#include "atom/browser/osr_window.h"
+#include "atom/browser/osr_render_widget_host_view.h"
+
 #include "third_party/WebKit/public/platform/WebScreenInfo.h"
 #include "components/display_compositor/gl_helper.h"
 #include "content/browser/renderer_host/render_widget_host_impl.h"
@@ -35,9 +36,7 @@
 #include "content/public/browser/browser_thread.h"
 #include "cc/scheduler/delay_based_time_source.h"
 
-#include "content/common/host_shared_bitmap_manager.h"
+const float kDefaultScaleFactor = 1.0;
-
-// const float kDefaultScaleFactor = 1.0;
 
 // The maximum number of retry counts if frame capture fails.
 const int kFrameRetryLimit = 2;
@@ -60,7 +59,7 @@ namespace atom {
 class AtomCopyFrameGenerator {
  public:
   AtomCopyFrameGenerator(int frame_rate_threshold_ms,
-                        OffScreenWindow* view)
+                        OffScreenRenderWidgetHostView* view)
     : frame_rate_threshold_ms_(frame_rate_threshold_ms),
       view_(view),
       frame_pending_(false),
@@ -321,7 +320,7 @@ class AtomCopyFrameGenerator {
   }
 
   int frame_rate_threshold_ms_;
-  OffScreenWindow* view_;
+  OffScreenRenderWidgetHostView* view_;
 
   base::Time last_time_;
 
@@ -376,15 +375,14 @@ class AtomBeginFrameTimer : public cc::DelayBasedTimeSourceClient {
   DISALLOW_COPY_AND_ASSIGN(AtomBeginFrameTimer);
 };
 
-OffScreenWindow::OffScreenWindow(
+OffScreenRenderWidgetHostView::OffScreenRenderWidgetHostView(
-  content::RenderWidgetHost* host, NativeWindow* native_window)
+  content::RenderWidgetHost* host, NativeWindow* native_window): render_widget_host_(content::RenderWidgetHostImpl::From(host)),
-  : render_widget_host_(content::RenderWidgetHostImpl::From(host)),
     native_window_(native_window),
     software_output_device_(NULL),
     frame_rate_threshold_ms_(0),
-    scale_factor_(1.0f),
+    scale_factor_(kDefaultScaleFactor),
     is_showing_(!render_widget_host_->is_hidden()),
-    size_(gfx::Size(800, 600)),
+    size_(native_window->GetSize()),
     delegated_frame_host_(new content::DelegatedFrameHost(this)),
     compositor_widget_(gfx::kNullAcceleratedWidget),
     weak_ptr_factory_(this) {
@@ -413,7 +411,7 @@ OffScreenWindow::OffScreenWindow(
   ResizeRootLayer();
 }
 
-void OffScreenWindow::ResizeRootLayer() {
+void OffScreenRenderWidgetHostView::ResizeRootLayer() {
   SetFrameRate();
 
   // const float orgScaleFactor = scale_factor_;
@@ -436,14 +434,14 @@ void OffScreenWindow::ResizeRootLayer() {
   // compositor_->SetScaleAndSize(scale_factor_, size_in_pixels);
 }
 
-void OffScreenWindow::OnBeginFrameTimerTick() {
+void OffScreenRenderWidgetHostView::OnBeginFrameTimerTick() {
   const base::TimeTicks frame_time = base::TimeTicks::Now();
   const base::TimeDelta vsync_period =
       base::TimeDelta::FromMilliseconds(frame_rate_threshold_ms_);
   SendBeginFrame(frame_time, vsync_period);
 }
 
-void OffScreenWindow::SendBeginFrame(base::TimeTicks frame_time,
+void OffScreenRenderWidgetHostView::SendBeginFrame(base::TimeTicks frame_time,
                                                 base::TimeDelta vsync_period) {
   base::TimeTicks display_time = frame_time + vsync_period;
 
@@ -458,15 +456,14 @@ void OffScreenWindow::SendBeginFrame(base::TimeTicks frame_time,
       render_widget_host_->GetRoutingID(),
       cc::BeginFrameArgs::Create(BEGINFRAME_FROM_HERE, frame_time, deadline,
                                  vsync_period, cc::BeginFrameArgs::NORMAL)));
-  // std::cout << "sent begin frame" << std::endl;
 }
 
-void OffScreenWindow::SetPaintCallback(const OnPaintCallback* callback) {
+void OffScreenRenderWidgetHostView::SetPaintCallback(const OnPaintCallback* callback) {
-  paintCallback.reset(callback);
+  callback_.reset(callback);
 }
 
-OffScreenWindow::~OffScreenWindow() {
+OffScreenRenderWidgetHostView::~OffScreenRenderWidgetHostView() {
-  // std::cout << "~OffScreenWindow" << std::endl;
+  // std::cout << "~OffScreenRenderWidgetHostView" << std::endl;
 
   if (is_showing_)
     delegated_frame_host_->WasHidden();
@@ -477,11 +474,11 @@ OffScreenWindow::~OffScreenWindow() {
   root_layer_.reset(NULL);
 }
 
-bool OffScreenWindow::OnMessageReceived(const IPC::Message& message) {
+bool OffScreenRenderWidgetHostView::OnMessageReceived(const IPC::Message& message) {
   // std::cout << "OnMessageReceived" << std::endl;
 
   bool handled = true;
-  IPC_BEGIN_MESSAGE_MAP(OffScreenWindow, message)
+  IPC_BEGIN_MESSAGE_MAP(OffScreenRenderWidgetHostView, message)
     IPC_MESSAGE_HANDLER(ViewHostMsg_SetNeedsBeginFrames,
                         OnSetNeedsBeginFrames)
     IPC_MESSAGE_UNHANDLED(handled = false)
@@ -492,16 +489,16 @@ bool OffScreenWindow::OnMessageReceived(const IPC::Message& message) {
   return handled;
 }
 
-void OffScreenWindow::InitAsChild(gfx::NativeView) {
+void OffScreenRenderWidgetHostView::InitAsChild(gfx::NativeView) {
   // std::cout << "InitAsChild" << std::endl;
 }
 
-content::RenderWidgetHost* OffScreenWindow::GetRenderWidgetHost() const {
+content::RenderWidgetHost* OffScreenRenderWidgetHostView::GetRenderWidgetHost() const {
   // std::cout << "GetRenderWidgetHost" << std::endl;
   return render_widget_host_;
 }
 
-void OffScreenWindow::SetSize(const gfx::Size& size) {
+void OffScreenRenderWidgetHostView::SetSize(const gfx::Size& size) {
   // std::cout << "SetSize" << std::endl;
   size_ = size;
 
@@ -514,45 +511,45 @@ void OffScreenWindow::SetSize(const gfx::Size& size) {
   compositor_->SetScaleAndSize(scale_factor_, size_in_pixels);
 }
 
-void OffScreenWindow::SetBounds(const gfx::Rect& new_bounds) {
+void OffScreenRenderWidgetHostView::SetBounds(const gfx::Rect& new_bounds) {
   // std::cout << "SetBounds" << std::endl;
 }
 
-gfx::Vector2dF OffScreenWindow::GetLastScrollOffset() const {
+gfx::Vector2dF OffScreenRenderWidgetHostView::GetLastScrollOffset() const {
   // std::cout << "GetLastScrollOffset" << std::endl;
   return last_scroll_offset_;
 }
 
-gfx::NativeView OffScreenWindow::GetNativeView() const {
+gfx::NativeView OffScreenRenderWidgetHostView::GetNativeView() const {
   // std::cout << "GetNativeView" << std::endl;
   return gfx::NativeView();
 }
 
-gfx::NativeViewAccessible OffScreenWindow::GetNativeViewAccessible() {
+gfx::NativeViewAccessible OffScreenRenderWidgetHostView::GetNativeViewAccessible() {
   // std::cout << "GetNativeViewAccessible" << std::endl;
   return gfx::NativeViewAccessible();
 }
 
-ui::TextInputClient* OffScreenWindow::GetTextInputClient() {
+ui::TextInputClient* OffScreenRenderWidgetHostView::GetTextInputClient() {
   // std::cout << "GetTextInputClient" << std::endl;
   return nullptr;
 }
 
-void OffScreenWindow::Focus() {
+void OffScreenRenderWidgetHostView::Focus() {
   // std::cout << "Focus" << std::endl;
 }
 
-bool OffScreenWindow::HasFocus() const {
+bool OffScreenRenderWidgetHostView::HasFocus() const {
   // std::cout << "HasFocus" << std::endl;
   return false;
 }
 
-bool OffScreenWindow::IsSurfaceAvailableForCopy() const {
+bool OffScreenRenderWidgetHostView::IsSurfaceAvailableForCopy() const {
   // std::cout << "IsSurfaceAvailableForCopy" << std::endl;
   return delegated_frame_host_->CanCopyToBitmap();
 }
 
-void OffScreenWindow::Show() {
+void OffScreenRenderWidgetHostView::Show() {
   // std::cout << "Show" << std::endl;
   if (is_showing_)
     return;
@@ -564,7 +561,7 @@ void OffScreenWindow::Show() {
   delegated_frame_host_->WasShown(ui::LatencyInfo());
 }
 
-void OffScreenWindow::Hide() {
+void OffScreenRenderWidgetHostView::Hide() {
   // std::cout << "Hide" << std::endl;
   if (!is_showing_)
     return;
@@ -576,48 +573,48 @@ void OffScreenWindow::Hide() {
   is_showing_ = false;
 }
 
-bool OffScreenWindow::IsShowing() {
+bool OffScreenRenderWidgetHostView::IsShowing() {
   // std::cout << "IsShowing" << std::endl;
   return is_showing_;
 }
 
-gfx::Rect OffScreenWindow::GetViewBounds() const {
+gfx::Rect OffScreenRenderWidgetHostView::GetViewBounds() const {
   // std::cout << "GetViewBounds" << std::endl;
   // std::cout << size_.width() << "x" << size_.height() << std::endl;
   return gfx::Rect(size_);
 }
 
-gfx::Size OffScreenWindow::GetVisibleViewportSize() const {
+gfx::Size OffScreenRenderWidgetHostView::GetVisibleViewportSize() const {
   // std::cout << "GetVisibleViewportSize" << std::endl;
   // std::cout << size_.width() << "x" << size_.height() << std::endl;
   return size_;
 }
 
-void OffScreenWindow::SetInsets(const gfx::Insets& insets) {
+void OffScreenRenderWidgetHostView::SetInsets(const gfx::Insets& insets) {
   // std::cout << "SetInsets" << std::endl;
 }
 
-bool OffScreenWindow::LockMouse() {
+bool OffScreenRenderWidgetHostView::LockMouse() {
   // std::cout << "LockMouse" << std::endl;
   return false;
 }
 
-void OffScreenWindow::UnlockMouse() {
+void OffScreenRenderWidgetHostView::UnlockMouse() {
   // std::cout << "UnlockMouse" << std::endl;
 }
 
-bool OffScreenWindow::GetScreenColorProfile(std::vector<char>*) {
+bool OffScreenRenderWidgetHostView::GetScreenColorProfile(std::vector<char>*) {
   // std::cout << "GetScreenColorProfile" << std::endl;
   return false;
 }
 
-void OffScreenWindow::OnSwapCompositorFrame(
+void OffScreenRenderWidgetHostView::OnSwapCompositorFrame(
   uint32_t output_surface_id,
   std::unique_ptr<cc::CompositorFrame> frame) {
   // base::Time now = base::Time::Now();
   // std::cout << "OnSwapCompositorFrame " << (now - last_time_).InMilliseconds()  << " ms" << std::endl;
   // last_time_ = now;
-  TRACE_EVENT0("electron", "OffScreenWindow::OnSwapCompositorFrame");
+  TRACE_EVENT0("electron", "OffScreenRenderWidgetHostView::OnSwapCompositorFrame");
 
   // std::cout << output_surface_id << std::endl;
 
@@ -654,56 +651,56 @@ void OffScreenWindow::OnSwapCompositorFrame(
   }
 }
 
-void OffScreenWindow::ClearCompositorFrame() {
+void OffScreenRenderWidgetHostView::ClearCompositorFrame() {
   // std::cout << "ClearCompositorFrame" << std::endl;
   delegated_frame_host_->ClearDelegatedFrame();
 }
 
-void OffScreenWindow::InitAsPopup(
+void OffScreenRenderWidgetHostView::InitAsPopup(
   content::RenderWidgetHostView *, const gfx::Rect &) {
   // std::cout << "InitAsPopup" << std::endl;
 }
 
-void OffScreenWindow::InitAsFullscreen(content::RenderWidgetHostView *) {
+void OffScreenRenderWidgetHostView::InitAsFullscreen(content::RenderWidgetHostView *) {
   // std::cout << "InitAsFullscreen" << std::endl;
 }
 
-void OffScreenWindow::UpdateCursor(const content::WebCursor &) {
+void OffScreenRenderWidgetHostView::UpdateCursor(const content::WebCursor &) {
   // std::cout << "UpdateCursor" << std::endl;
 }
 
-void OffScreenWindow::SetIsLoading(bool loading) {
+void OffScreenRenderWidgetHostView::SetIsLoading(bool loading) {
   // std::cout << "SetIsLoading" << std::endl;
 }
 
-void OffScreenWindow::TextInputStateChanged(
+void OffScreenRenderWidgetHostView::TextInputStateChanged(
   const content::TextInputState& params) {
   // std::cout << "TextInputStateChanged" << std::endl;
 }
 
-void OffScreenWindow::ImeCancelComposition() {
+void OffScreenRenderWidgetHostView::ImeCancelComposition() {
   // std::cout << "ImeCancelComposition" << std::endl;
 }
 
-void OffScreenWindow::RenderProcessGone(base::TerminationStatus,int) {
+void OffScreenRenderWidgetHostView::RenderProcessGone(base::TerminationStatus,int) {
   // std::cout << "RenderProcessGone" << std::endl;
   Destroy();
 }
 
-void OffScreenWindow::Destroy() {
+void OffScreenRenderWidgetHostView::Destroy() {
   // std::cout << "Destroy" << std::endl;
 }
 
-void OffScreenWindow::SetTooltipText(const base::string16 &) {
+void OffScreenRenderWidgetHostView::SetTooltipText(const base::string16 &) {
   // std::cout << "SetTooltipText" << std::endl;
 }
 
-void OffScreenWindow::SelectionBoundsChanged(
+void OffScreenRenderWidgetHostView::SelectionBoundsChanged(
   const ViewHostMsg_SelectionBounds_Params &) {
   // std::cout << "SelectionBoundsChanged" << std::endl;
 }
 
-void OffScreenWindow::CopyFromCompositingSurface(const gfx::Rect& src_subrect,
+void OffScreenRenderWidgetHostView::CopyFromCompositingSurface(const gfx::Rect& src_subrect,
   const gfx::Size& dst_size,
   const content::ReadbackRequestCallback& callback,
   const SkColorType preferred_color_type) {
@@ -712,7 +709,7 @@ void OffScreenWindow::CopyFromCompositingSurface(const gfx::Rect& src_subrect,
     src_subrect, dst_size, callback, preferred_color_type);
 }
 
-void OffScreenWindow::CopyFromCompositingSurfaceToVideoFrame(
+void OffScreenRenderWidgetHostView::CopyFromCompositingSurfaceToVideoFrame(
   const gfx::Rect& src_subrect,
   const scoped_refptr<media::VideoFrame>& target,
   const base::Callback<void (const gfx::Rect&, bool)>& callback) {
@@ -721,28 +718,28 @@ void OffScreenWindow::CopyFromCompositingSurfaceToVideoFrame(
     src_subrect, target, callback);
 }
 
-bool OffScreenWindow::CanCopyToVideoFrame() const {
+bool OffScreenRenderWidgetHostView::CanCopyToVideoFrame() const {
   // std::cout << "CanCopyToVideoFrame" << std::endl;
   return delegated_frame_host_->CanCopyToVideoFrame();
 }
 
-void OffScreenWindow::BeginFrameSubscription(
+void OffScreenRenderWidgetHostView::BeginFrameSubscription(
   std::unique_ptr<content::RenderWidgetHostViewFrameSubscriber> subscriber) {
   // std::cout << "BeginFrameSubscription" << std::endl;
   delegated_frame_host_->BeginFrameSubscription(std::move(subscriber));
 }
 
-void OffScreenWindow::EndFrameSubscription() {
+void OffScreenRenderWidgetHostView::EndFrameSubscription() {
   // std::cout << "EndFrameSubscription" << std::endl;
   delegated_frame_host_->EndFrameSubscription();
 }
 
-bool OffScreenWindow::HasAcceleratedSurface(const gfx::Size &) {
+bool OffScreenRenderWidgetHostView::HasAcceleratedSurface(const gfx::Size &) {
   // std::cout << "HasAcceleratedSurface" << std::endl;
   return false;
 }
 
-void OffScreenWindow::GetScreenInfo(blink::WebScreenInfo* results) {
+void OffScreenRenderWidgetHostView::GetScreenInfo(blink::WebScreenInfo* results) {
   // std::cout << "GetScreenInfo" << std::endl;
   // std::cout << size_.width() << "x" << size_.height() << std::endl;
   results->rect = gfx::Rect(size_);
@@ -754,84 +751,84 @@ void OffScreenWindow::GetScreenInfo(blink::WebScreenInfo* results) {
   results->orientationType = blink::WebScreenOrientationLandscapePrimary;
 }
 
-bool OffScreenWindow::GetScreenColorProfile(blink::WebVector<char>*) {
+bool OffScreenRenderWidgetHostView::GetScreenColorProfile(blink::WebVector<char>*) {
   // std::cout << "GetScreenColorProfile" << std::endl;
   return false;
 }
 
-gfx::Rect OffScreenWindow::GetBoundsInRootWindow() {
+gfx::Rect OffScreenRenderWidgetHostView::GetBoundsInRootWindow() {
   // std::cout << "GetBoundsInRootWindow" << std::endl;
   // std::cout << size_.width() << "x" << size_.height() << std::endl;
   return gfx::Rect(size_);
 }
 
-void OffScreenWindow::LockCompositingSurface() {
+void OffScreenRenderWidgetHostView::LockCompositingSurface() {
   // std::cout << "LockCompositingSurface" << std::endl;
 }
 
-void OffScreenWindow::UnlockCompositingSurface() {
+void OffScreenRenderWidgetHostView::UnlockCompositingSurface() {
   // std::cout << "UnlockCompositingSurface" << std::endl;
 }
 
-void OffScreenWindow::ImeCompositionRangeChanged(
+void OffScreenRenderWidgetHostView::ImeCompositionRangeChanged(
   const gfx::Range &, const std::vector<gfx::Rect>&) {
   // std::cout << "ImeCompositionRangeChanged" << std::endl;
 }
 
-gfx::Size OffScreenWindow::GetPhysicalBackingSize() const {
+gfx::Size OffScreenRenderWidgetHostView::GetPhysicalBackingSize() const {
   // std::cout << "GetPhysicalBackingSize" << std::endl;
   return size_;
 }
 
-gfx::Size OffScreenWindow::GetRequestedRendererSize() const {
+gfx::Size OffScreenRenderWidgetHostView::GetRequestedRendererSize() const {
   // std::cout << "GetRequestedRendererSize" << std::endl;
   return size_;
 }
 
-int OffScreenWindow::DelegatedFrameHostGetGpuMemoryBufferClientId() const {
+int OffScreenRenderWidgetHostView::DelegatedFrameHostGetGpuMemoryBufferClientId() const {
   // std::cout << "DelegatedFrameHostGetGpuMemoryBufferClientId" << std::endl;
   return render_widget_host_->GetProcess()->GetID();
 }
 
-ui::Layer* OffScreenWindow::DelegatedFrameHostGetLayer() const {
+ui::Layer* OffScreenRenderWidgetHostView::DelegatedFrameHostGetLayer() const {
   // std::cout << "DelegatedFrameHostGetLayer" << std::endl;
   return const_cast<ui::Layer*>(root_layer_.get());
 }
 
-bool OffScreenWindow::DelegatedFrameHostIsVisible() const {
+bool OffScreenRenderWidgetHostView::DelegatedFrameHostIsVisible() const {
   // std::cout << "DelegatedFrameHostIsVisible" << std::endl;
   // std::cout << !render_widget_host_->is_hidden() << std::endl;
   return !render_widget_host_->is_hidden();
 }
 
-SkColor OffScreenWindow::DelegatedFrameHostGetGutterColor(SkColor color) const {
+SkColor OffScreenRenderWidgetHostView::DelegatedFrameHostGetGutterColor(SkColor color) const {
   // std::cout << "DelegatedFrameHostGetGutterColor" << std::endl;
   return color;
 }
 
-gfx::Size OffScreenWindow::DelegatedFrameHostDesiredSizeInDIP() const {
+gfx::Size OffScreenRenderWidgetHostView::DelegatedFrameHostDesiredSizeInDIP() const {
   // std::cout << "DelegatedFrameHostDesiredSizeInDIP" << std::endl;
   // std::cout << size_.width() << "x" << size_.height() << std::endl;
   return size_;
 }
 
-bool OffScreenWindow::DelegatedFrameCanCreateResizeLock() const {
+bool OffScreenRenderWidgetHostView::DelegatedFrameCanCreateResizeLock() const {
   // std::cout << "DelegatedFrameCanCreateResizeLock" << std::endl;
   return false;
 }
 
 std::unique_ptr<content::ResizeLock>
-  OffScreenWindow::DelegatedFrameHostCreateResizeLock(bool) {
+  OffScreenRenderWidgetHostView::DelegatedFrameHostCreateResizeLock(bool) {
   // std::cout << "DelegatedFrameHostCreateResizeLock" << std::endl;
   return nullptr;
 }
 
-void OffScreenWindow::DelegatedFrameHostResizeLockWasReleased() {
+void OffScreenRenderWidgetHostView::DelegatedFrameHostResizeLockWasReleased() {
   // std::cout << "DelegatedFrameHostResizeLockWasReleased" << std::endl;
   return render_widget_host_->WasResized();
 }
 
-void OffScreenWindow::DelegatedFrameHostSendCompositorSwapAck(
+void OffScreenRenderWidgetHostView::DelegatedFrameHostSendCompositorSwapAck(
   int output_surface_id, const cc::CompositorFrameAck& ack) {
   // std::cout << "DelegatedFrameHostSendCompositorSwapAck" << std::endl;
   // std::cout << output_surface_id << std::endl;
@@ -840,7 +837,7 @@ void OffScreenWindow::DelegatedFrameHostSendCompositorSwapAck(
     output_surface_id, ack));
 }
 
-void OffScreenWindow::DelegatedFrameHostSendReclaimCompositorResources(
+void OffScreenRenderWidgetHostView::DelegatedFrameHostSendReclaimCompositorResources(
   int output_surface_id, const cc::CompositorFrameAck& ack) {
   // std::cout << "DelegatedFrameHostSendReclaimCompositorResources" << std::endl;
   // std::cout << output_surface_id << std::endl;
@@ -849,30 +846,30 @@ void OffScreenWindow::DelegatedFrameHostSendReclaimCompositorResources(
     output_surface_id, ack));
 }
 
-void OffScreenWindow::DelegatedFrameHostOnLostCompositorResources() {
+void OffScreenRenderWidgetHostView::DelegatedFrameHostOnLostCompositorResources() {
   // std::cout << "DelegatedFrameHostOnLostCompositorResources" << std::endl;
   render_widget_host_->ScheduleComposite();
 }
 
-void OffScreenWindow::DelegatedFrameHostUpdateVSyncParameters(
+void OffScreenRenderWidgetHostView::DelegatedFrameHostUpdateVSyncParameters(
   const base::TimeTicks& timebase, const base::TimeDelta& interval) {
   // std::cout << "DelegatedFrameHostUpdateVSyncParameters" << std::endl;
   render_widget_host_->UpdateVSyncParameters(timebase, interval);
 }
 
 std::unique_ptr<cc::SoftwareOutputDevice>
-    OffScreenWindow::CreateSoftwareOutputDevice(ui::Compositor* compositor) {
+    OffScreenRenderWidgetHostView::CreateSoftwareOutputDevice(ui::Compositor* compositor) {
   DCHECK_EQ(compositor_.get(), compositor);
   DCHECK(!copy_frame_generator_);
   DCHECK(!software_output_device_);
 
   software_output_device_ = new OffScreenOutputDevice(true,
-      base::Bind(&OffScreenWindow::OnPaint,
+      base::Bind(&OffScreenRenderWidgetHostView::OnPaint,
                  weak_ptr_factory_.GetWeakPtr()));
   return base::WrapUnique(software_output_device_);
 }
 
-void OffScreenWindow::OnSetNeedsBeginFrames(bool enabled) {
+void OffScreenRenderWidgetHostView::OnSetNeedsBeginFrames(bool enabled) {
   SetFrameRate();
 
   begin_frame_timer_->SetActive(enabled);
@@ -883,7 +880,7 @@ void OffScreenWindow::OnSetNeedsBeginFrames(bool enabled) {
   // std::cout << "OnSetNeedsBeginFrames" << enabled << std::endl;
 }
 
-void OffScreenWindow::SetFrameRate() {
+void OffScreenRenderWidgetHostView::SetFrameRate() {
   // Only set the frame rate one time.
   // if (frame_rate_threshold_ms_ != 0)
   //   return;
@@ -905,28 +902,28 @@ void OffScreenWindow::SetFrameRate() {
   } else {
     begin_frame_timer_.reset(new AtomBeginFrameTimer(
         frame_rate_threshold_ms_,
-        base::Bind(&OffScreenWindow::OnBeginFrameTimerTick,
+        base::Bind(&OffScreenRenderWidgetHostView::OnBeginFrameTimerTick,
                    weak_ptr_factory_.GetWeakPtr())));
   }
 }
 
-void OffScreenWindow::SetBeginFrameSource(
+void OffScreenRenderWidgetHostView::SetBeginFrameSource(
     cc::BeginFrameSource* source) {
 }
 
-bool OffScreenWindow::IsAutoResizeEnabled() const {
+bool OffScreenRenderWidgetHostView::IsAutoResizeEnabled() const {
   return false;
 }
 
-void OffScreenWindow::OnPaint(
+void OffScreenRenderWidgetHostView::OnPaint(
     const gfx::Rect& damage_rect,
     int bitmap_width,
     int bitmap_height,
     void* bitmap_pixels) {
-  TRACE_EVENT0("electron", "OffScreenWindow::OnPaint");
+  TRACE_EVENT0("electron", "OffScreenRenderWidgetHostView::OnPaint");
 
-  if (paintCallback) {
+  if (callback_) {
-    paintCallback->Run(damage_rect, bitmap_width, bitmap_height, bitmap_pixels);
+    callback_->Run(damage_rect, bitmap_width, bitmap_height, bitmap_pixels);
   }
 }
 

atom/browser/osr_render_widget_host_view.h

@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef ATOM_BROWSER_OSR_WINDOW_H_
+#ifndef ATOM_BROWSER_OSR_RENDER_WIDGET_HOST_VIEW_H_
-#define ATOM_BROWSER_OSR_WINDOW_H_
+#define ATOM_BROWSER_OSR_RENDER_WIDGET_HOST_VIEW_H_
 
 #include "atom/browser/native_window.h"
 
@@ -57,7 +57,7 @@ namespace atom {
 class AtomCopyFrameGenerator;
 class AtomBeginFrameTimer;
 
-class OffScreenWindow
+class OffScreenRenderWidgetHostView
   : public content::RenderWidgetHostViewBase,
   #if defined(OS_MACOSX)
     public ui::AcceleratedWidgetMacNSView,
@@ -65,8 +65,8 @@ class OffScreenWindow
     public ui::CompositorDelegate,
     public content::DelegatedFrameHostClient {
 public:
-  OffScreenWindow(content::RenderWidgetHost*, NativeWindow*);
+  OffScreenRenderWidgetHostView(content::RenderWidgetHost*, NativeWindow*);
-  ~OffScreenWindow();
+  ~OffScreenRenderWidgetHostView();
 
   void CreatePlatformWidget();
 
@@ -187,7 +187,6 @@ public:
   void SendBeginFrame(base::TimeTicks frame_time,
                       base::TimeDelta vsync_period);
 
-  std::unique_ptr<const atom::OnPaintCallback> paintCallback;
   void SetPaintCallback(const atom::OnPaintCallback*);
 
   void OnPaint(const gfx::Rect& damage_rect,
@@ -207,6 +206,8 @@ private:
 
   OffScreenOutputDevice* software_output_device_;
 
+  std::unique_ptr<const atom::OnPaintCallback> callback_;
+
   int frame_rate_threshold_ms_;
 
   base::Time last_time_;
@@ -249,10 +250,10 @@ private:
   gfx::Rect first_selection_rect_;
 #endif
 
-  base::WeakPtrFactory<OffScreenWindow> weak_ptr_factory_;
+  base::WeakPtrFactory<OffScreenRenderWidgetHostView> weak_ptr_factory_;
-  DISALLOW_COPY_AND_ASSIGN(OffScreenWindow);
+  DISALLOW_COPY_AND_ASSIGN(OffScreenRenderWidgetHostView);
 };
 
 }  // namespace atom
 
-#endif  // ATOM_BROWSER_OSR_WINDOW_H_
+#endif  // ATOM_BROWSER_OSR_RENDER_WIDGET_HOST_VIEW_H_

atom/browser/osr_render_widget_host_view_mac.mm

@@ -1,4 +1,4 @@
-#include "atom/browser/osr_window.h"
+#include "atom/browser/osr_render_widget_host_view.h"
 
 #include <algorithm>
 #include <limits>
@@ -13,47 +13,47 @@
 #include "ui/accelerated_widget_mac/accelerated_widget_mac.h"
 #include "ui/events/latency_info.h"
 
-ui::AcceleratedWidgetMac* atom::OffScreenWindow::GetAcceleratedWidgetMac()
+ui::AcceleratedWidgetMac* atom::OffScreenRenderWidgetHostView::GetAcceleratedWidgetMac()
     const {
   if (browser_compositor_)
     return browser_compositor_->accelerated_widget_mac();
   return nullptr;
 }
 
-NSView* atom::OffScreenWindow::AcceleratedWidgetGetNSView() const {
+NSView* atom::OffScreenRenderWidgetHostView::AcceleratedWidgetGetNSView() const {
   return [window_ contentView];
 }
 
-void atom::OffScreenWindow::AcceleratedWidgetGetVSyncParameters(
+void atom::OffScreenRenderWidgetHostView::AcceleratedWidgetGetVSyncParameters(
     base::TimeTicks* timebase, base::TimeDelta* interval) const {
   *timebase = base::TimeTicks();
   *interval = base::TimeDelta();
 }
 
-void atom::OffScreenWindow::AcceleratedWidgetSwapCompleted() {
+void atom::OffScreenRenderWidgetHostView::AcceleratedWidgetSwapCompleted() {
 }
 
-void atom::OffScreenWindow::SetActive(bool active) {
+void atom::OffScreenRenderWidgetHostView::SetActive(bool active) {
 }
 
-void atom::OffScreenWindow::ShowDefinitionForSelection() {
+void atom::OffScreenRenderWidgetHostView::ShowDefinitionForSelection() {
 }
 
-bool atom::OffScreenWindow::SupportsSpeech() const {
+bool atom::OffScreenRenderWidgetHostView::SupportsSpeech() const {
   return false;
 }
 
-void atom::OffScreenWindow::SpeakSelection() {
+void atom::OffScreenRenderWidgetHostView::SpeakSelection() {
 }
 
-bool atom::OffScreenWindow::IsSpeaking() const {
+bool atom::OffScreenRenderWidgetHostView::IsSpeaking() const {
   return false;
 }
 
-void atom::OffScreenWindow::StopSpeaking() {
+void atom::OffScreenRenderWidgetHostView::StopSpeaking() {
 }
 
-void atom::OffScreenWindow::SelectionChanged(
+void atom::OffScreenRenderWidgetHostView::SelectionChanged(
     const base::string16& text,
     size_t offset,
     const gfx::Range& range) {
@@ -74,7 +74,7 @@ void atom::OffScreenWindow::SelectionChanged(
   RenderWidgetHostViewBase::SelectionChanged(text, offset, range);
 }
 
-void atom::OffScreenWindow::CreatePlatformWidget() {
+void atom::OffScreenRenderWidgetHostView::CreatePlatformWidget() {
   // Create a borderless non-visible 1x1 window.
   window_ = [[NSWindow alloc] initWithContentRect:NSMakeRect(0, 0, 1, 1)
                                         styleMask:NSBorderlessWindowMask
@@ -102,7 +102,7 @@ void atom::OffScreenWindow::CreatePlatformWidget() {
   browser_compositor_->Unsuspend();
 }
 
-// void atom::OffScreenWindow::PlatformDestroyCompositorWidget() {
+// void atom::OffScreenRenderWidgetHostView::PlatformDestroyCompositorWidget() {
 //   DCHECK(window_);
 //
 //   browser_compositor_->Destroy();

atom/browser/osr_render_widget_host_view_win.cc

@@ -4,7 +4,7 @@
 
 #include <windows.h>
 
-#include "atom/browser/osr_window.h"
+#include "atom/browser/osr_render_widget_host_view.h"
 
 namespace atom {
 
@@ -32,7 +32,7 @@ private:
   DISALLOW_COPY_AND_ASSIGN(DummyWindowWin);
 };
 
-void OffScreenWindow::CreatePlatformWidget() {
+void OffScreenRenderWidgetHostView::CreatePlatformWidget() {
   DCHECK(!window_);
   window_.reset(new DummyWindowWin());
   compositor_widget_ = window_->hwnd();

atom/browser/osr_web_contents_view.cc

@@ -4,17 +4,16 @@
 
 #include "atom/browser/osr_web_contents_view.h"
 
-#include "atom/browser/osr_window.h"
+#include "atom/browser/osr_render_widget_host_view.h"
 #include <iostream>
 
 namespace atom {
 
-OffScreenWebContentsView::OffScreenWebContentsView() : web_contents_(nullptr) {
+OffScreenWebContentsView::OffScreenWebContentsView():
-  // std::cout << "OffScreenWebContentsView" << std::endl;
+    web_contents_(nullptr) {
-  //std::this_thread::sleep_for(std::chrono::milliseconds(10000));
 }
+
 OffScreenWebContentsView::~OffScreenWebContentsView() {
-  // std::cout << "~OffScreenWebContentsView" << std::endl;
 }
 
 void OffScreenWebContentsView::SetWebContents(
@@ -114,9 +113,9 @@ void OffScreenWebContentsView::CreateView(
 content::RenderWidgetHostViewBase*
   OffScreenWebContentsView::CreateViewForWidget(
     content::RenderWidgetHost* render_widget_host, bool is_guest_view_hack){
-  // std::cout << "CreateViewForWidget" << std::endl;
   auto relay = NativeWindowRelay::FromWebContents(web_contents_);
-  view_ = new OffScreenWindow(render_widget_host, relay->window.get());
+  view_ = new OffScreenRenderWidgetHostView(render_widget_host,
+    relay->window.get());
   return view_;
 }
 
@@ -124,9 +123,9 @@ content::RenderWidgetHostViewBase*
 content::RenderWidgetHostViewBase*
   OffScreenWebContentsView::CreateViewForPopupWidget(
     content::RenderWidgetHost* render_widget_host){
-  // std::cout << "CreateViewForPopupWidget" << std::endl;
   auto relay = NativeWindowRelay::FromWebContents(web_contents_);
-  view_ = new OffScreenWindow(render_widget_host, relay->window.get());
+  view_ = new OffScreenRenderWidgetHostView(render_widget_host,
+    relay->window.get());
   return view_;
 }
 

atom/browser/osr_web_contents_view.h

@@ -14,9 +14,10 @@ namespace atom {
 class OffScreenWebContentsView : public content::WebContentsView,
                                  public content::RenderViewHostDelegateView {
 public:
+
   OffScreenWebContentsView();
   ~OffScreenWebContentsView();
-  
+
   void SetWebContents(content::WebContents*);
 
   gfx::NativeView GetNativeView() const override;

default_app/default_app.js

@@ -38,11 +38,6 @@ exports.load = (appUrl) => {
     })
     mainWindow1.loadURL(appUrl)
     mainWindow1.focus()
-    mainWindow1.webContents.on('dom-ready', () => {
-      mainWindow1.webContents.beginFrameSubscription(() => {
-        console.log("asd")
-      })
-    })
     var start1, end1
     start1 = +new Date();
     mainWindow1.webContents.on('paint', (e, rect, w, h, data) => {
@@ -53,7 +48,7 @@ exports.load = (appUrl) => {
 
       start1 = end1
     })
-    
+
     /*contentTracing.startRecording(options, () => {
       console.log('Tracing started');
 
@@ -76,23 +71,18 @@ exports.load = (appUrl) => {
     })
     mainWindow2.loadURL("http://4danatomy.com")
     mainWindow2.focus()
-    /*mainWindow2.webContents.on('dom-ready', () => {
+
-      mainWindow2.webContents.beginFrameSubscription(() => {
-        console.log("asd")
-      })
-    })
-    
     var start2, end2
     start2 = +new Date();
     mainWindow2.webContents.on('paint', (e, rect, w, h, data) => {
       end2 = +new Date();
-    
+
       const d = end2 - start2
       console.log(`browser #2: ${d < 10 ? ` ${d}` : d} ms`)
-    
+
       start2 = end2
     })*/
-    
+
     mainWindow3 = new BrowserWindow({
       width: 800,
       height: 600,
@@ -106,23 +96,18 @@ exports.load = (appUrl) => {
     })
     mainWindow3.loadURL(appUrl)
     mainWindow3.focus()
-    mainWindow3.webContents.on('dom-ready', () => {
+
-      mainWindow3.webContents.beginFrameSubscription(() => {
-        console.log("asd")
-      })
-    })
-    
     var start3, end3
     start3 = +new Date();
     mainWindow3.webContents.on('paint', (e, rect, w, h, data) => {
       end3 = +new Date();
-    
+
       const d = end3 - start3
       console.log(`browser #3: ${d < 10 ? ` ${d}` : d} ms`)
-    
+
       start3 = end3
     })
-    
+
     mainWindow4 = new BrowserWindow({
       width: 800,
       height: 600,
@@ -136,23 +121,18 @@ exports.load = (appUrl) => {
     })
     mainWindow4.loadURL(appUrl)
     mainWindow4.focus()
-    mainWindow4.webContents.on('dom-ready', () => {
+
-      mainWindow4.webContents.beginFrameSubscription(() => {
-        console.log("asd")
-      })
-    })
-    
     var start4, end4
     start4 = +new Date();
     mainWindow4.webContents.on('paint', (e, rect, w, h, data) => {
       end4 = +new Date();
-    
+
       const d = end4 - start4
       console.log(`browser #4: ${d < 10 ? ` ${d}` : d} ms`)
-    
+
       start4 = end4
     })
-  
+
     mainWindow5 = new BrowserWindow({
       width: 800,
       height: 600,
@@ -166,23 +146,18 @@ exports.load = (appUrl) => {
     })
     mainWindow5.loadURL(appUrl)
     mainWindow5.focus()
-    mainWindow5.webContents.on('dom-ready', () => {
+
-      mainWindow5.webContents.beginFrameSubscription(() => {
-        console.log("asd")
-      })
-    })
-    
     var start5, end5
     start5 = +new Date();
     mainWindow5.webContents.on('paint', (e, rect, w, h, data) => {
       end5 = +new Date();
-    
+
       const d = end5 - start5
       console.log(`browser #5: ${d < 10 ? ` ${d}` : d} ms`)
-    
+
       start5 = end5
     })
-    
+
     mainWindow6 = new BrowserWindow({
       width: 800,
       height: 600,
@@ -196,23 +171,18 @@ exports.load = (appUrl) => {
     })
     mainWindow6.loadURL(appUrl)
     mainWindow6.focus()
-    mainWindow6.webContents.on('dom-ready', () => {
+
-      mainWindow6.webContents.beginFrameSubscription(() => {
-        console.log("asd")
-      })
-    })
-    
     var start6, end6
     start6 = +new Date();
     mainWindow6.webContents.on('paint', (e, rect, w, h, data) => {
       end6 = +new Date();
-    
+
       const d = end6 - start6
       console.log(`browser #6: ${d < 10 ? ` ${d}` : d} ms`)
-    
+
       start6 = end6
     })
-    
+
     mainWindow7 = new BrowserWindow({
       width: 800,
       height: 600,
@@ -226,23 +196,18 @@ exports.load = (appUrl) => {
     })
     mainWindow7.loadURL(appUrl)
     mainWindow7.focus()
-    mainWindow7.webContents.on('dom-ready', () => {
+
-      mainWindow7.webContents.beginFrameSubscription(() => {
-        console.log("asd")
-      })
-    })
-    
     var start7, end7
     start7 = +new Date();
     mainWindow7.webContents.on('paint', (e, rect, w, h, data) => {
       end7 = +new Date();
-    
+
       const d = end7 - start7
       console.log(`browser #7: ${d < 10 ? ` ${d}` : d} ms`)
-    
+
       start7 = end7
     })
-    
+
     mainWindow8 = new BrowserWindow({
       width: 800,
       height: 600,
@@ -256,20 +221,15 @@ exports.load = (appUrl) => {
     })
     mainWindow8.loadURL(appUrl)
     mainWindow8.focus()
-    mainWindow8.webContents.on('dom-ready', () => {
+
-      mainWindow8.webContents.beginFrameSubscription(() => {
-        console.log("asd")
-      })
-    })
-    
     var start8, end8
     start8 = +new Date();
     mainWindow8.webContents.on('paint', (e, rect, w, h, data) => {
       end8 = +new Date();
-    
+
       const d = end8 - start8
       console.log(`browser #8: ${d < 10 ? ` ${d}` : d} ms`)
-    
+
       start8 = end8
     })
   })

filenames.gypi

@@ -210,10 +210,10 @@
       'atom/browser/osr_web_contents_view.h',
       'atom/browser/osr_output_device.cc',
       'atom/browser/osr_output_device.h',
-      'atom/browser/osr_window.cc',
+      'atom/browser/osr_render_widget_host_view.cc',
-      'atom/browser/osr_window.h',
+      'atom/browser/osr_render_widget_host_view.h',
-      'atom/browser/osr_window_win.cc',
+      'atom/browser/osr_render_widget_host_view_win.cc',
-      'atom/browser/osr_window_mac.mm',
+      'atom/browser/osr_render_widget_host_view_mac.mm',
       'atom/browser/net/asar/asar_protocol_handler.cc',
       'atom/browser/net/asar/asar_protocol_handler.h',
       'atom/browser/net/asar/url_request_asar_job.cc',