Fix rendering of flash content inside an out-of-process iframe.

content/renderer/render_widget.h

Index: content/renderer/render_widget.h
diff --git a/content/renderer/render_widget.h b/content/renderer/render_widget.h
index 5d0303e01c9cea44d23ba2fb5d8f651cbaa22337..5eecc23c2729d62504f4a4ed8ebf4fef2d0cd047 100644
--- a/content/renderer/render_widget.h
+++ b/content/renderer/render_widget.h
@@ -360,6 +360,9 @@ class CONTENT_EXPORT RenderWidget
   void SetDeviceColorProfileForTesting(const std::vector<char>& color_profile);
   void ResetDeviceColorProfileForTesting();
 
+  // Indicates whether this widget has focus.
+  bool has_focus() const { return has_focus_; }
+
  protected:
   // Friend RefCounted so that the dtor can be non-public. Using this class
   // without ref-counting is an error.
@@ -495,7 +498,7 @@ class CONTENT_EXPORT RenderWidget
   // the ACK that the screen has been updated. For a given paint operation,
   // these overrides will always be called in the order DidInitiatePaint,
   // DidFlushPaint.
-  virtual void DidInitiatePaint();
+  virtual void DidInitiatePaint() {}
   virtual void DidFlushPaint();
 
   virtual GURL GetURLForGraphicsContext3D();
@@ -758,6 +761,9 @@ class CONTENT_EXPORT RenderWidget
   // When emulated, this returns original device scale factor.
   float GetOriginalDeviceScaleFactor() const;
 
+  // Indicates whether this widget has focus.
+  bool has_focus_;
+
   DISALLOW_COPY_AND_ASSIGN(RenderWidget);
 };