Use incognito split for ChromeVox and TTS in Guest mode

chrome/browser/extensions/component_loader.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_EXTENSIONS_COMPONENT_LOADER_H_
 #define CHROME_BROWSER_EXTENSIONS_COMPONENT_LOADER_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 78 matching lines @@
   // if the result is not a DictionaryValue.
   base::DictionaryValue* ParseManifest(
       const std::string& manifest_contents) const;
 
   // Clear the list of registered extensions.
   void ClearAllRegistered();
 
   // Reloads a registered component extension.
   void Reload(const std::string& extension_id);
 
+#if defined(OS_CHROMEOS)
+  std::string AddChromeVoxExtension();
+  std::string AddChromeOsSpeechSynthesisExtension();
+#endif
+
  private:
   // Information about a registered component extension.
   struct ComponentExtensionInfo {
     ComponentExtensionInfo(const base::DictionaryValue* manifest,
                            const base::FilePath& root_directory);
 
     // The parsed contents of the extensions's manifest file.
     const base::DictionaryValue* manifest;
 
     // Directory where the extension is stored.
@@ skipping 21 matching lines @@
   void AddWithName(int manifest_resource_id,
                    const base::FilePath& root_directory,
                    const std::string& name);
   void AddChromeApp();
   void AddKeyboardApp();
   void AddWebStoreApp();
 
   // Unloads |component| from the memory.
   void UnloadComponent(ComponentExtensionInfo* component);
 
+  // Enable HTML5 FileSystem for given component extension in Guest mode.
+  void EnableFileSystemInGuestMode(const std::string& id);
+
   PrefService* profile_prefs_;
   PrefService* local_state_;
   content::BrowserContext* browser_context_;
 
   ExtensionServiceInterface* extension_service_;
 
   // List of registered component extensions (see Manifest::Location).
   typedef std::vector<ComponentExtensionInfo> RegisteredComponentExtensions;
   RegisteredComponentExtensions component_extensions_;
 
   FRIEND_TEST_ALL_PREFIXES(TtsApiTest, NetworkSpeechEngine);
   FRIEND_TEST_ALL_PREFIXES(TtsApiTest, NoNetworkSpeechEngineWhenOffline);
 
   DISALLOW_COPY_AND_ASSIGN(ComponentLoader);
 };
 
 }  // namespace extensions
 
 #endif  // CHROME_BROWSER_EXTENSIONS_COMPONENT_LOADER_H_