Show local storage usage on the Website Settings options page.

chrome/browser/ui/webui/options/website_settings_handler.h

 // Copyright 2014 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_OPTIONS_WEBSITE_SETTINGS_HANDLER_H_
 #define CHROME_BROWSER_UI_WEBUI_OPTIONS_WEBSITE_SETTINGS_HANDLER_H_
 
 #include <string>
 
 #include "base/basictypes.h"
 #include "base/macros.h"
+#include "chrome/browser/browsing_data/browsing_data_local_storage_helper.h"
 #include "chrome/browser/content_settings/host_content_settings_map.h"
+#include "chrome/browser/content_settings/local_shared_objects_container.h"
 #include "chrome/browser/ui/webui/options/options_ui.h"
 #include "content/public/browser/notification_observer.h"
 #include "content/public/browser/notification_registrar.h"
 
 namespace options {
 
 class WebsiteSettingsHandler : public OptionsPageUIHandler {
  public:
   WebsiteSettingsHandler();
   virtual ~WebsiteSettingsHandler();
 
   // OptionsPageUIHandler implementation.
   virtual void GetLocalizedValues(
       base::DictionaryValue* localized_strings) OVERRIDE;
   virtual void RegisterMessages() OVERRIDE;
 
  private:
   // Update the page with all origins for a given content setting.
   // |args| is the string name of the content setting.
   void HandleUpdateOrigins(const base::ListValue* args);
 
   // Update the page with all origins given a filter string.
   // |args| is the filter string.
   void HandleUpdateSearchResults(const base::ListValue* args);
 
+  // Update the page with all origins that are using local storage.
+  void HandleUpdateLocalStorage(const base::ListValue* args);
+
+  // Callback method to be invoked when fetching the data is complete.
+  void OnLocalStorageFetch(

[Bernhard Bauer, 2014/07/21 11:29:30]

Nit: OnLocalStoragedFetched?

[Daniel Nishi, 2014/07/21 17:53:37]

Done.

+      const std::string& filter,
+      const std::list<BrowsingDataLocalStorageHelper::LocalStorageInfo>&
+          storage);
+
   // Get all origins with Content Settings for the last given content setting,
   // filter them by |filter|, and update the page.
   void UpdateOrigins(const std::string& filter);
 
-  ContentSettingsType last_setting_;
+  // Get all origins with local storage usage, filter them by |filter|, and
+  // update the page.
+  void UpdateLocalStorage(const std::string& filter);
+
+  std::string last_setting_;
+  scoped_refptr<BrowsingDataLocalStorageHelper> local_storage_;
 
   DISALLOW_COPY_AND_ASSIGN(WebsiteSettingsHandler);
 };
 
 }  // namespace options
 
 #endif  // CHROME_BROWSER_UI_WEBUI_OPTIONS_WEBSITE_SETTINGS_HANDLER_H_