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

chrome/browser/tab_render_watcher.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 CHROME_BROWSER_TAB_RENDER_WATCHER_H_
 #define CHROME_BROWSER_TAB_RENDER_WATCHER_H_
 #pragma once
 
 #include "base/compiler_specific.h"
 #include "content/public/browser/notification_observer.h"
 #include "content/public/browser/notification_registrar.h"
 
+namespace content {
 class RenderViewHost;
-
-namespace content {
 class WebContents;
 }
 
 // This class watches given TabContent's loading and rendering state change.
 class TabRenderWatcher : public content::NotificationObserver {
  public:
   class Delegate {
    public:
-    virtual void OnRenderHostCreated(RenderViewHost* host) = 0;
+    virtual void OnRenderHostCreated(content::RenderViewHost* host) = 0;
     virtual void OnTabMainFrameLoaded() = 0;
     virtual void OnTabMainFrameRender() = 0;
   };
 
   TabRenderWatcher(content::WebContents* tab, Delegate* delegate);
 
  private:
   // Overridden from content::NotificationObserver
   virtual void Observe(int type,
                        const content::NotificationSource& source,
                        const content::NotificationDetails& details) OVERRIDE;
 
   // Has the renderer loaded the page yet?
   bool loaded_;
 
   // WebContents that this class watches.
   content::WebContents* web_contents_;
 
   // Delegate to notify.
   Delegate* delegate_;
 
   content::NotificationRegistrar registrar_;
 
   DISALLOW_COPY_AND_ASSIGN(TabRenderWatcher);
 };
 
 #endif  // CHROME_BROWSER_TAB_RENDER_WATCHER_H_