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perf: avoid redundant calls to GetView() (#43231)

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* perf: avoid double-calls to GetView()

There are a lot of places where we call the virtual method GetView()
twice in succession: the first to check if the view exists, and the
second to use. This PR holds the view in a temp variable instead, e.g.:

if (auto* view = foo->GetView())
  view->DoSomething();

Co-authored-by: Charles Kerr <charles@charleskerr.com>

* perf: avoid discarded GetView() call

Co-authored-by: Charles Kerr <charles@charleskerr.com>

---------

Co-authored-by: trop[bot] <37223003+trop[bot]@users.noreply.github.com>
Co-authored-by: Charles Kerr <charles@charleskerr.com>
This commit is contained in:
trop[bot] 2024-08-06 19:24:05 -05:00 • committed by GitHub
parent 22b66ee6de
commit 31e6d66c74
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GPG key ID: B5690EEEBB952194
4 changed files with 20 additions and 28 deletions
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6
shell/browser/osr/osr_render_widget_host_view.cc
View file

@ -565,10 +565,8 @@ OffScreenRenderWidgetHostView::CreateViewForWidget(
content::RenderWidgetHost* render_widget_host,
content::RenderWidgetHost* embedder_render_widget_host,
content::WebContentsView* web_contents_view) {
if (render_widget_host->GetView()) {
return static_cast<content::RenderWidgetHostViewBase*>(
render_widget_host->GetView());
}
if (auto* rwhv = render_widget_host->GetView())
return static_cast<content::RenderWidgetHostViewBase*>(rwhv);
OffScreenRenderWidgetHostView* embedder_host_view = nullptr;
if (embedder_render_widget_host) {

30
shell/browser/osr/osr_web_contents_view.cc
View file

@ -33,8 +33,8 @@ void OffScreenWebContentsView::SetWebContents(
content::WebContents* web_contents) {
web_contents_ = web_contents;
if (GetView())
GetView()->InstallTransparency();
if (auto* view = GetView())
view->InstallTransparency();
}
void OffScreenWebContentsView::SetNativeWindow(NativeWindow* window) {
@ -51,8 +51,8 @@ void OffScreenWebContentsView::SetNativeWindow(NativeWindow* window) {
void OffScreenWebContentsView::OnWindowResize() {
// In offscreen mode call RenderWidgetHostView's SetSize explicitly
if (GetView())
GetView()->SetSize(GetSize());
if (auto* view = GetView())
view->SetSize(GetSize());
}
void OffScreenWebContentsView::OnWindowClosed() {
@ -105,7 +105,9 @@ content::DropData* OffScreenWebContentsView::GetDropData() const {
}
gfx::Rect OffScreenWebContentsView::GetViewBounds() const {
return GetView() ? GetView()->GetViewBounds() : gfx::Rect();
if (auto* view = GetView())
return view->GetViewBounds();
return {};
}
void OffScreenWebContentsView::CreateView(gfx::NativeView context) {}
@ -113,10 +115,8 @@ void OffScreenWebContentsView::CreateView(gfx::NativeView context) {}
content::RenderWidgetHostViewBase*
OffScreenWebContentsView::CreateViewForWidget(
content::RenderWidgetHost* render_widget_host) {
if (render_widget_host->GetView()) {
return static_cast<content::RenderWidgetHostViewBase*>(
render_widget_host->GetView());
}
if (auto* rwhv = render_widget_host->GetView())
return static_cast<content::RenderWidgetHostViewBase*>(rwhv);
return new OffScreenRenderWidgetHostView(
transparent_, painting_, GetFrameRate(), callback_, render_widget_host,
@ -142,8 +142,8 @@ OffScreenWebContentsView::CreateViewForChildWidget(
void OffScreenWebContentsView::SetPageTitle(const std::u16string& title) {}
void OffScreenWebContentsView::RenderViewReady() {
if (GetView())
GetView()->InstallTransparency();
if (auto* view = GetView())
view->InstallTransparency();
}
void OffScreenWebContentsView::RenderViewHostChanged(
@ -179,11 +179,9 @@ void OffScreenWebContentsView::UpdateDragOperation(
bool document_is_handling_drag) {}
void OffScreenWebContentsView::SetPainting(bool painting) {
auto* view = GetView();
painting_ = painting;
if (view != nullptr) {
if (auto* view = GetView())
view->SetPainting(painting);
}
}
bool OffScreenWebContentsView::IsPainting() const {
@ -193,11 +191,9 @@ bool OffScreenWebContentsView::IsPainting() const {
}
void OffScreenWebContentsView::SetFrameRate(int frame_rate) {
auto* view = GetView();
frame_rate_ = frame_rate;
if (view != nullptr) {
if (auto* view = GetView())
view->SetFrameRate(frame_rate);
}
}
int OffScreenWebContentsView::GetFrameRate() const {