Move Render(View|Widget)Host and associated classes to content namespace.

content/browser/tab_contents/web_drag_dest_mac.h

 // Copyright (c) 2011 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.
 
 #import <Cocoa/Cocoa.h>
 
 #include "base/string16.h"
 
-class RenderViewHost;
 class TabContents;
 struct WebDropData;
 
 namespace content {
+class RenderViewHost;
 class WebDragDestDelegate;
 }
 
 // A typedef for a RenderViewHost used for comparison purposes only.
-typedef RenderViewHost* RenderViewHostIdentifier;
+typedef content::RenderViewHost* RenderViewHostIdentifier;
 
 // A class that handles tracking and event processing for a drag and drop
 // over the content area. Assumes something else initiates the drag, this is
 // only for processing during a drag.
 
 @interface WebDragDest : NSObject {
  @private
   // Our associated TabContents. Weak reference.
   TabContents* tabContents_;
 
@@ skipping 41 matching lines @@
              fromPasteboard:(NSPasteboard*)pboard;
 // Given a point in window coordinates and a view in that window, return a
 // flipped point in the coordinate system of |view|.
 - (NSPoint)flipWindowPointToView:(const NSPoint&)windowPoint
                             view:(NSView*)view;
 // Given a point in window coordinates and a view in that window, return a
 // flipped point in screen coordinates.
 - (NSPoint)flipWindowPointToScreen:(const NSPoint&)windowPoint
                               view:(NSView*)view;
 @end