SpeechInputExtensionManager now interface (exclusively) with SpeechRecognitionManagerDelegate (Spee…

content/browser/speech/speech_recognition_manager_impl.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 CONTENT_BROWSER_SPEECH_SPEECH_RECOGNITION_MANAGER_IMPL_H_
 #define CONTENT_BROWSER_SPEECH_SPEECH_RECOGNITION_MANAGER_IMPL_H_
 #pragma once
 
 #include <map>
 #include <string>
 
 #include "base/basictypes.h"
 #include "base/callback.h"
 #include "base/compiler_specific.h"
+#include "base/memory/weak_ptr.h"
 #include "content/public/browser/speech_recognition_event_listener.h"
 #include "content/public/browser/speech_recognition_manager.h"
 #include "content/public/browser/speech_recognition_session_config.h"
 #include "content/public/browser/speech_recognition_session_context.h"
 #include "content/public/common/speech_recognition_error.h"
 
 namespace content {
 class BrowserMainLoop;
 class SpeechRecognitionManagerDelegate;
 }
@@ skipping 17 matching lines @@
 //  - Handles requests received from various render views and makes sure only
 //    one of them accesses the audio device at any given time.
 //  - Handles the instantiation of SpeechRecognitionEngine objects when
 //    requested by SpeechRecognitionSessions.
 //  - Relays recognition results/status/error events of each session to the
 //    corresponding listener (demuxing on the base of their session_id).
 //  - Relays also recognition results/status/error events of every session to
 //    the catch-all snoop listener (optionally) provided by the delegate.
 class CONTENT_EXPORT SpeechRecognitionManagerImpl :
     public NON_EXPORTED_BASE(content::SpeechRecognitionManager),
+    public base::SupportsWeakPtr<SpeechRecognitionManagerImpl>,
     public content::SpeechRecognitionEventListener {
  public:
-  // Returns the current SpeechRecognitionManagerImpl. Can be called only after
-  // the RecognitionMnager has been created (by BrowserMainLoop).
+  // Returns the current SpeechRecognitionManagerImpl or NULL if the call is
+  // issued when it is not created yet or destroyed (by BrowserMainLoop).
   static SpeechRecognitionManagerImpl* GetInstance();
 
   // SpeechRecognitionManager implementation.
   virtual int CreateSession(
       const content::SpeechRecognitionSessionConfig& config) OVERRIDE;
   virtual void StartSession(int session_id) OVERRIDE;
   virtual void AbortSession(int session_id) OVERRIDE;
   virtual void AbortAllSessionsForListener(
         content::SpeechRecognitionEventListener* listener) OVERRIDE;
   virtual void StopAudioCaptureForSession(int session_id) OVERRIDE;
@@ skipping 94 matching lines @@
   SessionsTable sessions_;
   int session_id_capturing_audio_;
   int last_session_id_;
   bool is_dispatching_event_;
   scoped_ptr<content::SpeechRecognitionManagerDelegate> delegate_;
 };
 
 }  // namespace speech
 
 #endif  // CONTENT_BROWSER_SPEECH_SPEECH_RECOGNITION_MANAGER_IMPL_H_