content: A couple of device-scale-factor fixes:

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_
 #pragma once
 
 #include <deque>
 #include <vector>
@@ skipping 123 matching lines @@
   virtual void closeWidgetSoon();
   virtual void show(WebKit::WebNavigationPolicy);
   virtual void runModal() {}
   virtual WebKit::WebRect windowRect();
   virtual void setToolTipText(const WebKit::WebString& text,
                               WebKit::WebTextDirection hint);
   virtual void setWindowRect(const WebKit::WebRect&);
   virtual WebKit::WebRect windowResizerRect();
   virtual WebKit::WebRect rootWindowRect();
   virtual WebKit::WebScreenInfo screenInfo();
+  virtual float deviceScaleFactor();
   virtual void resetInputMethod();
 
   // Called when a plugin is moved.  These events are queued up and sent with
   // the next paint or scroll message to the host.
   void SchedulePluginMove(const webkit::npapi::WebPluginGeometry& move);
 
   // Called when a plugin window has been destroyed, to make sure the currently
   // pending moves don't try to reference it.
   void CleanupWindowInPluginMoves(gfx::PluginWindowHandle window);
 
@@ skipping 377 matching lines @@
   // Set to true if we should invert all pixels.
   bool invert_;
 
   // The Skia paint object for inverting.
   scoped_ptr<SkPaint> invert_paint_;
 
   DISALLOW_COPY_AND_ASSIGN(RenderWidget);
 };
 
 #endif  // CONTENT_RENDERER_RENDER_WIDGET_H_