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

chrome/browser/tab_contents/chrome_web_contents_view_mac_delegate.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 "chrome/browser/tab_contents/chrome_web_contents_view_mac_delegate.h"
 
 #import "chrome/browser/renderer_host/chrome_render_widget_host_view_mac_delegate.h"
 #include "chrome/browser/tab_contents/render_view_context_menu_mac.h"
 #include "chrome/browser/tab_contents/web_drag_bookmark_handler_mac.h"
 #import "chrome/browser/ui/cocoa/view_id_util.h"
@@ skipping 11 matching lines @@
     content::WebContents* web_contents)
     : bookmark_handler_(new WebDragBookmarkHandlerMac),
       web_contents_(web_contents) {
 }
 
 ChromeWebContentsViewMacDelegate::~ChromeWebContentsViewMacDelegate() {
 }
 
 NSObject<RenderWidgetHostViewMacDelegate>*
 ChromeWebContentsViewMacDelegate::CreateRenderWidgetHostViewDelegate(
-    RenderWidgetHost* render_widget_host) {
+    content::RenderWidgetHost* render_widget_host) {
   return [[ChromeRenderWidgetHostViewMacDelegate alloc]
       initWithRenderWidgetHost:render_widget_host];
 }
 
 content::WebDragDestDelegate* ChromeWebContentsViewMacDelegate::DragDelegate() {
   return static_cast<content::WebDragDestDelegate*>(bookmark_handler_.get());
 }
 
 void ChromeWebContentsViewMacDelegate::ShowContextMenu(
     const content::ContextMenuParams& params) {
@@ skipping 16 matching lines @@
   context_menu_->Init();
 }
 
 void ChromeWebContentsViewMacDelegate::NativeViewCreated(NSView* view) {
   view_id_util::SetID(view, VIEW_ID_TAB_CONTAINER);
 }
 
 void ChromeWebContentsViewMacDelegate::NativeViewDestroyed(NSView* view) {
   view_id_util::UnsetID(view);
 }