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

content/public/browser/web_contents_observer.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.
 
 #ifndef CONTENT_PUBLIC_BROWSER_WEB_CONTENTS_OBSERVER_H_
 #define CONTENT_PUBLIC_BROWSER_WEB_CONTENTS_OBSERVER_H_
 
 #include "base/process_util.h"
 #include "content/common/content_export.h"
 #include "content/public/browser/navigation_controller.h"
 #include "content/public/common/page_transition_types.h"
 #include "ipc/ipc_channel.h"
 #include "webkit/glue/window_open_disposition.h"
 
-class RenderViewHost;
 class TabContents;
 
 namespace content {
 
+class RenderViewHost;
 class WebContents;
 struct FrameNavigateParams;
 struct LoadCommittedDetails;
 struct Referrer;
 
 // An observer API implemented by classes which are interested in various page
 // load events from TabContents.  They also get a chance to filter IPC messages.
 class CONTENT_EXPORT WebContentsObserver : public IPC::Channel::Listener,
                                            public IPC::Message::Sender {
  public:
@@ skipping 100 matching lines @@
   void TabContentsDestroyed();
 
   TabContents* tab_contents_;
 
   DISALLOW_COPY_AND_ASSIGN(WebContentsObserver);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_PUBLIC_BROWSER_WEB_CONTENTS_OBSERVER_H_