Improve error messaging of webRequest API in case of conflicts

chrome/browser/ui/webui/extensions/extension_settings_handler.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_EXTENSIONS_EXTENSION_SETTINGS_HANDLER_H_
 #define CHROME_BROWSER_UI_WEBUI_EXTENSIONS_EXTENSION_SETTINGS_HANDLER_H_
 
 #include <set>
 #include <string>
 #include <vector>
@@ skipping 54 matching lines @@
   virtual ~ExtensionSettingsHandler();
 
   static void RegisterUserPrefs(PrefService* prefs);
 
   // Extension Detail JSON Struct for page. |pages| is injected for unit
   // testing.
   // Note: |warning_set| can be NULL in unit tests.
   base::DictionaryValue* CreateExtensionDetailValue(
       const extensions::Extension* extension,
       const std::vector<ExtensionPage>& pages,
-      const ExtensionWarningSet* warning_set);
+      const ExtensionWarningService* warning_set);
 
   void GetLocalizedValues(base::DictionaryValue* localized_strings);
 
   // content::WebContentsObserver implementation, which reloads all unpacked
   // extensions whenever chrome://extensions is reloaded.
   virtual void NavigateToPendingEntry(
       const GURL& url,
       content::NavigationController::ReloadType reload_type) OVERRIDE;
 
  private:
@@ skipping 128 matching lines @@
 
   content::NotificationRegistrar registrar_;
 
   PrefChangeRegistrar pref_registrar_;
   PrefChangeRegistrar local_state_pref_registrar_;
 
   DISALLOW_COPY_AND_ASSIGN(ExtensionSettingsHandler);
 };
 
 #endif  // CHROME_BROWSER_UI_WEBUI_EXTENSIONS_EXTENSION_SETTINGS_HANDLER_H_