Implement web speech synthesis.

chrome/renderer/chrome_content_renderer_client.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_RENDERER_CHROME_CONTENT_RENDERER_CLIENT_H_
 #define CHROME_RENDERER_CHROME_CONTENT_RENDERER_CLIENT_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 102 matching lines @@
                                       const GURL& first_party_for_cookies,
                                       std::string* cookies) OVERRIDE;
   virtual bool HandleSetCookieRequest(content::RenderView* sender,
                                       const GURL& url,
                                       const GURL& first_party_for_cookies,
                                       const std::string& value) OVERRIDE;
   virtual bool AllowBrowserPlugin(
       WebKit::WebPluginContainer* container) const OVERRIDE;
   virtual void RegisterPPAPIInterfaceFactories(
       webkit::ppapi::PpapiInterfaceFactoryManager* factory_manager) OVERRIDE;
+  virtual WebKit::WebSpeechSynthesizer* OverrideSpeechSynthesizer(
+      WebKit::WebSpeechSynthesizerClient* client) OVERRIDE;
 
   // For testing.
   void SetExtensionDispatcher(extensions::Dispatcher* extension_dispatcher);
 
   // Sets a new |spellcheck|. Used for low-mem restart and testing only.
   // Takes ownership of |spellcheck|.
   void SetSpellcheck(SpellCheck* spellcheck);
 
   // Called in low-memory conditions to dump the memory used by the spellchecker
   // and start over.
@@ skipping 40 matching lines @@
   scoped_ptr<RendererNetPredictor> net_predictor_;
   scoped_ptr<SpellCheck> spellcheck_;
   scoped_ptr<components::VisitedLinkSlave> visited_link_slave_;
   scoped_ptr<safe_browsing::PhishingClassifierFilter> phishing_classifier_;
   scoped_ptr<prerender::PrerenderDispatcher> prerender_dispatcher_;
 };
 
 }  // namespace chrome
 
 #endif  // CHROME_RENDERER_CHROME_CONTENT_RENDERER_CLIENT_H_