Implement MediaCaptureDevices.

chrome/browser/media/media_capture_devices_dispatcher.h

Index: chrome/browser/media/media_capture_devices_dispatcher.h
diff --git a/chrome/browser/media/media_capture_devices_dispatcher.h b/chrome/browser/media/media_capture_devices_dispatcher.h
index cba839dc82d89062bbdc20b1343987afecd13b4f..83e8e990a0ced1521d302bdff3d79e363fee83e7 100644
--- a/chrome/browser/media/media_capture_devices_dispatcher.h
+++ b/chrome/browser/media/media_capture_devices_dispatcher.h
@@ -39,16 +39,6 @@ class MediaCaptureDevicesDispatcher : public content::MediaObserver,
  public:
   class Observer {
    public:
-    // Handle an information update consisting of a up-to-date audio capture
-    // device lists. This happens when a microphone is plugged in or unplugged.
-    virtual void OnUpdateAudioDevices(
-        const content::MediaStreamDevices& devices) {}
-
-    // Handle an information update consisting of a up-to-date video capture
-    // device lists. This happens when a camera is plugged in or unplugged.
-    virtual void OnUpdateVideoDevices(
-        const content::MediaStreamDevices& devices) {}
-
     // Handle an information update related to a media stream request.
     virtual void OnRequestUpdate(
         int render_process_id,
@@ -73,8 +63,6 @@ class MediaCaptureDevicesDispatcher : public content::MediaObserver,
   // on destruction.
   void AddObserver(Observer* observer);
   void RemoveObserver(Observer* observer);
-  const content::MediaStreamDevices& GetAudioCaptureDevices();
-  const content::MediaStreamDevices& GetVideoCaptureDevices();
 
   // Method called from WebCapturerDelegate implementations to process access
   // requests. |extension| is set to NULL if request was made from a drive-by
@@ -107,16 +95,7 @@ class MediaCaptureDevicesDispatcher : public content::MediaObserver,
   const content::MediaStreamDevice* GetFirstAvailableAudioDevice();
   const content::MediaStreamDevice* GetFirstAvailableVideoDevice();
 
-  // Unittests that do not require actual device enumeration should call this
-  // API on the singleton. It is safe to call this multiple times on the
-  // signleton.
-  void DisableDeviceEnumerationForTesting();
-
   // Overridden from content::MediaObserver:
-  virtual void OnAudioCaptureDevicesChanged(
-      const content::MediaStreamDevices& devices) OVERRIDE;
-  virtual void OnVideoCaptureDevicesChanged(
-      const content::MediaStreamDevices& devices) OVERRIDE;
   virtual void OnMediaRequestStateChanged(
       int render_process_id,
       int render_view_id,
@@ -197,8 +176,6 @@ class MediaCaptureDevicesDispatcher : public content::MediaObserver,
                                scoped_ptr<content::MediaStreamUI> ui);
 
   // Called by the MediaObserver() functions, executed on UI thread.
-  void UpdateAudioDevicesOnUIThread(const content::MediaStreamDevices& devices);
-  void UpdateVideoDevicesOnUIThread(const content::MediaStreamDevices& devices);
   void UpdateMediaRequestStateOnUIThread(
       int render_process_id,
       int render_view_id,
@@ -209,22 +186,9 @@ class MediaCaptureDevicesDispatcher : public content::MediaObserver,
   void OnCreatingAudioStreamOnUIThread(int render_process_id,
                                        int render_frame_id);
 
-  // A list of cached audio capture devices.
-  content::MediaStreamDevices audio_devices_;
-
-  // A list of cached video capture devices.
-  content::MediaStreamDevices video_devices_;
-
   // A list of observers for the device update notifications.
   ObserverList<Observer> observers_;
 
-  // Flag to indicate if device enumeration has been done/doing.
-  // Only accessed on UI thread.
-  bool devices_enumerated_;
-
-  // Flag used by unittests to disable device enumeration.
-  bool is_device_enumeration_disabled_;
-
   RequestsQueues pending_requests_;
 
   scoped_refptr<MediaStreamCaptureIndicator> media_stream_capture_indicator_;