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

chrome/browser/ui/cocoa/extensions/extension_view_mac.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 "chrome/browser/ui/cocoa/extensions/extension_view_mac.h"
 
 #include "chrome/browser/extensions/extension_host.h"
 #include "content/browser/tab_contents/web_contents_view_mac.h"
@@ skipping 21 matching lines @@
 }
 
 void ExtensionViewMac::Init() {
   CreateWidgetHostView();
 }
 
 gfx::NativeView ExtensionViewMac::native_view() {
   return extension_host_->host_contents()->GetView()->GetNativeView();
 }
 
-RenderViewHost* ExtensionViewMac::render_view_host() const {
+content::RenderViewHost* ExtensionViewMac::render_view_host() const {
   return extension_host_->render_view_host();
 }
 
 void ExtensionViewMac::DidStopLoading() {
   ShowIfCompletelyLoaded();
 }
 
 void ExtensionViewMac::SetBackground(const SkBitmap& background) {
   if (!pending_background_.empty() && render_view_host()->GetView()) {
     render_view_host()->GetView()->SetBackground(background);
@@ skipping 34 matching lines @@
 
 void ExtensionViewMac::ShowIfCompletelyLoaded() {
   // We wait to show the ExtensionView until it has loaded, and the view has
   // actually been created. These can happen in different orders.
   if (extension_host_->did_stop_loading()) {
     [native_view() setHidden:NO];
     if (container_)
       container_->OnExtensionViewDidShow(this);
   }
 }