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

content/renderer/render_widget.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CONTENT_RENDERER_RENDER_WIDGET_H_
 #define CONTENT_RENDERER_RENDER_WIDGET_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
@@ skipping 342 matching lines @@
   // Checks if the composition range or composition character bounds have been
   // changed. If they are changed, the new value will be sent to the browser
   // process. This method does nothing when the browser process is not able to
   // handle composition range and composition character bounds.
   void UpdateCompositionInfo(bool should_update_range);
 
   // Change the device ICC color profile while running a layout test.
   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.
   friend class base::RefCounted<RenderWidget>;
 
   // For unit tests.
   friend class RenderWidgetTest;
 
   enum ResizeAck {
     SEND_RESIZE_ACK,
@@ skipping 115 matching lines @@
   bool SetDeviceColorProfile(const std::vector<char>& color_profile);
 
   virtual void OnOrientationChange();
 
   // Override points to notify derived classes that a paint has happened.
   // DidInitiatePaint happens when that has completed, and subsequent rendering
   // won't affect the painted content. DidFlushPaint happens once we've received
   // 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();
 
   // Sets the "hidden" state of this widget.  All accesses to is_hidden_ should
   // use this method so that we can properly inform the RenderThread of our
   // state.
   void SetHidden(bool hidden);
 
   void DidToggleFullscreen();
@@ skipping 242 matching lines @@
   bool has_host_context_menu_location_;
   gfx::Point host_context_menu_location_;
 
   std::unique_ptr<scheduler::RenderWidgetSchedulingState>
       render_widget_scheduling_state_;
 
  private:
   // 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);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_RENDER_WIDGET_H_