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

chrome/browser/ui/cocoa/find_bar/find_bar_cocoa_controller.mm

 // 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.
 
 #import <Cocoa/Cocoa.h>
 
 #include "base/mac/bundle_locations.h"
 #include "base/mac/mac_util.h"
 #include "base/sys_string_conversions.h"
 #include "chrome/browser/ui/cocoa/browser_window_controller.h"
@@ skipping 216 matching lines @@
     NSEvent* event = [NSApp currentEvent];
     if ([event type] != NSKeyDown && [event type] != NSKeyUp)
       return NO;
 
     // Forward the event to the renderer.
     // TODO(rohitrao): Should this call -[BaseView keyEvent:]?  Is there code in
     // that function that we want to keep or avoid? Calling
     // |ForwardKeyboardEvent()| directly ignores edit commands, which breaks
     // cmd-up/down if we ever decide to include |moveToBeginningOfDocument:| in
     // the list above.
-    RenderViewHost* render_view_host =
+    content::RenderViewHost* render_view_host =
         contents->web_contents()->GetRenderViewHost();
     render_view_host->ForwardKeyboardEvent(NativeWebKeyboardEvent(event));
     return YES;
   }
 
   return NO;
 }
 
 // Methods from FindBar
 - (void)showFindBar:(BOOL)animate {
@@ skipping 285 matching lines @@
     }
   }
 
   // Has to happen after |ClearResults()| above.
   BOOL buttonsEnabled = [text length] > 0 ? YES : NO;
   [previousButton_ setEnabled:buttonsEnabled];
   [nextButton_ setEnabled:buttonsEnabled];
 }
 
 @end