TabContents -> WebContentsImpl, part 11.

content/browser/renderer_host/render_widget_helper.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_BROWSER_RENDERER_HOST_RENDER_WIDGET_HELPER_H_
 #define CONTENT_BROWSER_RENDERER_HOST_RENDER_WIDGET_HELPER_H_
 #pragma once
 
 #include <deque>
 #include <map>
@@ skipping 59 matching lines @@
 //
 // OPTIMIZED TAB SWITCHING
 //
 //   When a RenderWidgetHost is in a background tab, it is flagged as hidden.
 //   This causes the corresponding RenderWidget to stop sending UpdateRect
 //   messages. The RenderWidgetHost also discards its backingstore when it is
 //   hidden, which helps free up memory.  As a result, when a RenderWidgetHost
 //   is restored, it can be momentarily without a backingstore.  (Restoring a
 //   RenderWidgetHost results in a WasRestored message being sent to the
 //   RenderWidget, which triggers a full UpdateRect message.)  This can lead to
-//   an observed rendering glitch as the TabContents will just have to fill
+//   an observed rendering glitch as the WebContentsImpl will just have to fill
 //   white overtop the RenderWidgetHost until the RenderWidgetHost receives a
 //   UpdateRect message to refresh its backingstore.
 //
 //   To avoid this 'white flash', the RenderWidgetHost again makes use of the
 //   RenderWidgetHelper's WaitForUpdateMsg method.  When the RenderWidgetHost's
 //   GetBackingStore method is called, it will call WaitForUpdateMsg if it has
 //   no backingstore.
 //
 // TRANSPORT DIB CREATION
 //
@@ skipping 125 matching lines @@
 
   // The next routing id to use.
   base::AtomicSequenceNumber next_routing_id_;
 
   content::ResourceDispatcherHostImpl* resource_dispatcher_host_;
 
   DISALLOW_COPY_AND_ASSIGN(RenderWidgetHelper);
 };
 
 #endif  // CONTENT_BROWSER_RENDERER_HOST_RENDER_WIDGET_HELPER_H_