Adding "Clear hosted app data" checkbox to browsing data removal UI.

chrome/browser/ui/webui/options2/clear_browser_data_handler2.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_UI_WEBUI_OPTIONS2_CLEAR_BROWSER_DATA_HANDLER2_H_
 #define CHROME_BROWSER_UI_WEBUI_OPTIONS2_CLEAR_BROWSER_DATA_HANDLER2_H_
 #pragma once
 
 #include "chrome/browser/browsing_data_remover.h"
 #include "chrome/browser/prefs/pref_member.h"
@@ skipping 12 matching lines @@
   virtual void GetLocalizedValues(DictionaryValue* localized_strings) OVERRIDE;
   virtual void InitializeHandler() OVERRIDE;
 
   // WebUIMessageHandler implementation.
   virtual void RegisterMessages() OVERRIDE;
 
  private:
   // Javascript callback to start clearing data.
   void HandleClearBrowserData(const ListValue* value);
 
-  // Callback from BrowsingDataRemover. Closes the dialog.
+  // Callback from BrowsingDataRemover. Calls OnAllDataRemoved once both
+  // protected and unprotected data are removed.
   virtual void OnBrowsingDataRemoverDone() OVERRIDE;
 
+  // Closes the dialog once all requested data has been removed.
+  void OnAllDataRemoved();
+
+  // Clears the data of hosted apps, which is otherwise protected from deletion
+  // when the user clears regular browsing data.
+  void ClearHostedAppData();
+
   // If non-null it means removal is in progress. BrowsingDataRemover takes care
   // of deleting itself when done.
   BrowsingDataRemover* remover_;
 
   // Keeps track of whether clearing LSO data is supported.
   BooleanPrefMember clear_plugin_lso_data_enabled_;
 
+  // Indicates that we also need to delete hosted app data after finishing the
+  // first removal operation.
+  bool remove_hosted_app_data_pending_;
+
   DISALLOW_COPY_AND_ASSIGN(ClearBrowserDataHandler);
 };
 
 }  // namespace options2
 
 #endif  // CHROME_BROWSER_UI_WEBUI_OPTIONS2_CLEAR_BROWSER_DATA_HANDLER2_H_