Move WebUIMessageHandler to its own file in the public directory and put it in the content namesp...

chrome/browser/ui/webui/task_manager_dialog.cc

 // 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.
 
 #include "chrome/browser/ui/webui/task_manager_dialog.h"
 
 #include "base/bind.h"
 #include "base/memory/singleton.h"
 #include "base/utf_string_conversions.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/platform_util.h"
 #include "chrome/browser/prefs/pref_service.h"
 #include "chrome/browser/prefs/scoped_user_pref_update.h"
 #include "chrome/browser/ui/browser.h"
 #include "chrome/browser/ui/browser_dialogs.h"
 #include "chrome/browser/ui/browser_list.h"
 #include "chrome/browser/ui/dialog_style.h"
 #include "chrome/browser/ui/webui/html_dialog_ui.h"
 #include "chrome/common/pref_names.h"
 #include "chrome/common/url_constants.h"
 #include "grit/google_chrome_strings.h"
 #include "ui/base/l10n/l10n_util.h"
 
 #if defined(OS_CHROMEOS)
 #include "ui/views/widget/widget.h"
 #endif
 
 using content::BrowserThread;
 using content::WebContents;
+using content::WebUIMessageHandler;
 
 class TaskManagerDialogImpl : public HtmlDialogUIDelegate {
  public:
   TaskManagerDialogImpl();
 
   static void Show(bool is_background_page_mode);
   static TaskManagerDialogImpl* GetInstance();
 
  protected:
   friend struct DefaultSingletonTraits<TaskManagerDialogImpl>;
@@ skipping 138 matching lines @@
       BrowserThread::UI, FROM_HERE,
       base::Bind(&TaskManagerDialogImpl::Show, false));
 }
 
 // static
 void TaskManagerDialog::ShowBackgroundPages() {
   BrowserThread::PostTask(
       BrowserThread::UI, FROM_HERE,
       base::Bind(&TaskManagerDialogImpl::Show, true));
 }