Share TabFirstRenderWatcher with HtmlDialogView.

chrome/browser/tab_first_render_watcher.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 CHROME_BROWSER_CHROMEOS_TAB_FIRST_RENDER_WATCHER_H_
-#define CHROME_BROWSER_CHROMEOS_TAB_FIRST_RENDER_WATCHER_H_
+#ifndef CHROME_BROWSER_TAB_FIRST_RENDER_WATCHER_H_
+#define CHROME_BROWSER_TAB_FIRST_RENDER_WATCHER_H_
 #pragma once
 
 #include "base/compiler_specific.h"
 #include "content/public/browser/notification_observer.h"
 #include "content/public/browser/notification_registrar.h"
 
 class RenderViewHost;
 class TabContents;
 
-namespace chromeos {
-
 // This class watches given TabContent's loading and rendering state change.
-// TODO(xiyuan): Move this to a proper place and share with HTMLDialogView.
 class TabFirstRenderWatcher : public content::NotificationObserver {
  public:
   class Delegate {
    public:
     virtual void OnRenderHostCreated(RenderViewHost* host) = 0;
     virtual void OnTabMainFrameLoaded() = 0;
     virtual void OnTabMainFrameFirstRender() = 0;
   };
 
   TabFirstRenderWatcher(TabContents* tab, Delegate* delegate);
@@ skipping 15 matching lines @@
   TabContents* tab_contents_;
 
   // Delegate to notify.
   Delegate* delegate_;
 
   content::NotificationRegistrar registrar_;
 
   DISALLOW_COPY_AND_ASSIGN(TabFirstRenderWatcher);
 };
 
-}   // namespace chromeos
-
-#endif  // CHROME_BROWSER_CHROMEOS_TAB_FIRST_RENDER_WATCHER_H_
+#endif  // CHROME_BROWSER_TAB_FIRST_RENDER_WATCHER_H_