Refactor extension event distribution to use Values instead of JSON strings.

chrome/browser/speech/speech_input_extension_manager.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_SPEECH_SPEECH_INPUT_EXTENSION_MANAGER_H_
 #define CHROME_BROWSER_SPEECH_SPEECH_INPUT_EXTENSION_MANAGER_H_
 #pragma once
 
 #include <string>
 
 #include "base/callback_forward.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/synchronization/lock.h"
 #include "content/public/browser/notification_observer.h"
 #include "content/public/browser/speech_recognition_event_listener.h"
 
 class Profile;
 
+namespace base {
+class ListValue;
+}
+
 namespace content {
 class NotificationRegistrar;
 struct SpeechRecognitionError;
 class SpeechRecognitionManager;
 struct SpeechRecognitionResult;
 }
 
 namespace net {
 class URLRequestContextGetter;
 }
@@ skipping 136 matching lines @@
   void SetRecognitionResultOnUIThread(
       const content::SpeechRecognitionResult& result,
       const std::string& extension_id);
   void DidStartReceivingAudioOnUIThread();
   void StopSucceededOnUIThread();
   void IsRecordingOnUIThread(const IsRecordingCallback& callback, bool result);
 
   void DispatchError(const std::string& error, bool dispatch_event);
   void DispatchEventToExtension(const std::string& extension_id,
                                 const std::string& event,
-                                const std::string& json_args);
+                                base::ListValue* event_args);
   void ExtensionUnloaded(const std::string& extension_id);
 
   void ResetToIdleState();
 
   void AbortAllSessionsOnIOThread();
 
   int GetRenderProcessIDForExtension(const std::string& extension_id) const;
 
   virtual ~SpeechInputExtensionManager();
 
@@ skipping 16 matching lines @@
   // Used in the UI thread.
   scoped_ptr<content::NotificationRegistrar> registrar_;
   SpeechInputExtensionInterface* speech_interface_;
 
   // Used in the IO thread.
   bool is_recognition_in_progress_;
   int speech_recognition_session_id_;
 };
 
 #endif  // CHROME_BROWSER_SPEECH_SPEECH_INPUT_EXTENSION_MANAGER_H_