Just use visible state in CanFocus delegate

atom/browser/native_window_views.cc

@@ -149,8 +149,7 @@ NativeWindowViews::NativeWindowViews(
       resizable_(true),
       maximizable_(true),
       minimizable_(true),
-      fullscreenable_(true),
-      focusable_(true) {
+      fullscreenable_(true) {
   options.Get(options::kTitle, &title_);
   options.Get(options::kAutoHideMenuBar, &menu_bar_autohide_);
 
@@ -198,7 +197,8 @@ NativeWindowViews::NativeWindowViews(
   if (transparent() && !has_frame())
     params.shadow_type = views::Widget::InitParams::SHADOW_TYPE_NONE;
 
-  if (options.Get(options::kFocusable, &focusable_) && !focusable_)
+  bool focusable;
+  if (options.Get(options::kFocusable, &focusable) && !focusable)
     params.activatable = views::Widget::InitParams::ACTIVATABLE_NO;
 
 #if defined(OS_WIN)
@@ -806,7 +806,6 @@ void NativeWindowViews::SetContentProtection(bool enable) {
 }
 
 void NativeWindowViews::SetFocusable(bool focusable) {
-  focusable_ = focusable;
 #if defined(OS_WIN)
   LONG ex_style = ::GetWindowLong(GetAcceleratedWidget(), GWL_EXSTYLE);
   if (focusable)

atom/browser/native_window_views.h

@@ -130,7 +130,6 @@ class NativeWindowViews : public NativeWindow,
 
 #if defined(OS_WIN)
   TaskbarHost& taskbar_host() { return taskbar_host_; }
-  bool CanFocus();
 #endif
 
  private:
@@ -263,7 +262,6 @@ class NativeWindowViews : public NativeWindow,
   bool maximizable_;
   bool minimizable_;
   bool fullscreenable_;
-  bool focusable_;
   std::string title_;
   gfx::Size widget_size_;
 

atom/browser/native_window_views_win.cc

@@ -202,8 +202,4 @@ void NativeWindowViews::HandleSizeEvent(WPARAM w_param, LPARAM l_param) {
   }
 }
 
-bool NativeWindowViews::CanFocus() {
-  return focusable_ && IsVisible();
-}
-
 }  // namespace atom

atom/browser/ui/win/atom_desktop_native_widget_aura.cc

@@ -14,7 +14,7 @@ AtomDeskopNativeWidgetAura::AtomDeskopNativeWidgetAura(
 }
 
 bool AtomDeskopNativeWidgetAura::CanFocus() {
-  return window_->CanFocus();
+  return window_->IsVisible();
 }
 
 }  // namespace atom