Use RWH instead of RWHV to know whether a frame is focus.

content/browser/renderer_host/render_widget_host_impl.h

Index: content/browser/renderer_host/render_widget_host_impl.h
diff --git a/content/browser/renderer_host/render_widget_host_impl.h b/content/browser/renderer_host/render_widget_host_impl.h
index 80c5e23dc0647583c27ea666732880c052f6f29f..4bb34d4b03a93e96317ca4d5f04e1a6deee35743 100644
--- a/content/browser/renderer_host/render_widget_host_impl.h
+++ b/content/browser/renderer_host/render_widget_host_impl.h
@@ -228,6 +228,14 @@ class CONTENT_EXPORT RenderWidgetHostImpl
   virtual void GotFocus();
   virtual void LostCapture();
 
+  // Indicates whether the RenderWidgetHost is focused.

[Charlie Reis, 2015/02/04 17:32:43]

nit: thinks it is focused.

[mlamouri (slow - plz ping), 2015/02/04 17:44:11]

Done.

+  // This is different from RenderWidgetHostView in the sense that it reflects

[Charlie Reis, 2015/02/04 17:32:43]

nit: RenderWidgetHostView::HasFocus()

[mlamouri (slow - plz ping), 2015/02/04 17:44:11]

Done.

+  // what the renderer process knows - it saves the state that is sent/received.

[Charlie Reis, 2015/02/04 17:32:43]

nit: colon rather than dash

[mlamouri (slow - plz ping), 2015/02/04 17:44:12]

Done.

+  // RenderWidgetHostView::HasFocus() is checking whether the view is focused so
+  // it is possible in some edge cases that a view was requested to be focused

[Charlie Reis, 2015/02/04 17:32:43]

nit: requested to be focused but it failed, thus HasFocus() returns false.

[mlamouri (slow - plz ping), 2015/02/04 17:44:12]

Done.

+  // but HasFocus() returns false.
+  bool is_focused() const { return is_focused_; }
+
   // Called to notify the RenderWidget that it has lost the mouse lock.
   virtual void LostMouseLock();
 
@@ -841,6 +849,11 @@ class CONTENT_EXPORT RenderWidgetHostImpl
   // object does not self destroy.
   bool owned_by_render_frame_host_;
 
+  // Indicates whether this frame is focused. This is trying to match what the

[Charlie Reis, 2015/02/04 17:32:43]

nit: thinks it is focused.

[mlamouri (slow - plz ping), 2015/02/04 17:44:12]

Done.

+  // renderer process knows. It is different from RenderWidgetHostView::HasFocus
+  // in that regard.

[Charlie Reis, 2015/02/04 17:32:43]

nit: in that regard -> in that the focus request may fail, causing HasFocus to
return false when is_focused_ is true.

[mlamouri (slow - plz ping), 2015/02/04 17:44:12]

Done.

+  bool is_focused_;
+
   base::WeakPtrFactory<RenderWidgetHostImpl> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(RenderWidgetHostImpl);