Media Related changes for TabCapture API

content/browser/renderer_host/media/media_stream_manager.h

Index: content/browser/renderer_host/media/media_stream_manager.h
diff --git a/content/browser/renderer_host/media/media_stream_manager.h b/content/browser/renderer_host/media/media_stream_manager.h
index ac8612b6c59cd3c56a83c12126133fbeba99f736..52a15a2cace95352f323725bc6daf31b3379598a 100644
--- a/content/browser/renderer_host/media/media_stream_manager.h
+++ b/content/browser/renderer_host/media/media_stream_manager.h
@@ -186,6 +186,8 @@ class CONTENT_EXPORT MediaStreamManager
   // opened/closed.
   void NotifyObserverDevicesOpened(DeviceRequest* request);
   void NotifyObserverDevicesClosed(DeviceRequest* request);
+  void NotifyObserverRequestStateChange(DeviceRequest* request,
+                                        MediaStreamType media_type);
   void DevicesFromRequest(DeviceRequest* request,
                           content::MediaStreamDevices* devices);
 
@@ -198,6 +200,9 @@ class CONTENT_EXPORT MediaStreamManager
   bool HasEnumerationRequest(MediaStreamType type);
   bool HasEnumerationRequest();
   void ClearEnumerationCache(EnumerationCache* cache);
+  void UpdateRequestState(DeviceRequest* device,
+                          MediaStreamType media_type,
+                          const content::MediaStreamRequest::RequestState);
 
   // Helper to create the device managers, if needed.  Auto-starts the device
   // thread and registers this as a listener with the device managers.