Pass camera facing info to audio client

content/browser/renderer_host/media/video_capture_manager.h

Index: content/browser/renderer_host/media/video_capture_manager.h
diff --git a/content/browser/renderer_host/media/video_capture_manager.h b/content/browser/renderer_host/media/video_capture_manager.h
index 3bad7b152eec3d3684cbef086c07acd447fccfa2..3caeedf5b71312c5031c5928eada1a7cda1dd24f 100644
--- a/content/browser/renderer_host/media/video_capture_manager.h
+++ b/content/browser/renderer_host/media/video_capture_manager.h
@@ -29,6 +29,7 @@
 #include "content/browser/renderer_host/media/video_capture_controller_event_handler.h"
 #include "content/common/content_export.h"
 #include "content/common/media/media_stream_options.h"
+#include "media/base/video_facing.h"
 #include "media/capture/video/video_capture_device.h"
 #include "media/capture/video/video_capture_device_factory.h"
 #include "media/capture/video_capture_types.h"
@@ -53,6 +54,8 @@ class CONTENT_EXPORT VideoCaptureManager : public MediaStreamProvider {
   explicit VideoCaptureManager(
       std::unique_ptr<media::VideoCaptureDeviceFactory> factory);
 
+  void SetVideoCaptureObserver(media::VideoCaptureObserver* observer);

[chfremer1, 2017/01/25 18:13:44]

Same considerations here as with the SetVideoCaptureObserver() method in
MediaStreamManager.

[shenghao, 2017/01/29 10:21:01]

Done.

+
   void Unregister();
 
   // Implements MediaStreamProvider.
@@ -323,6 +326,8 @@ class CONTENT_EXPORT VideoCaptureManager : public MediaStreamProvider {
   std::unique_ptr<media::VideoCaptureDeviceFactory>
       video_capture_device_factory_;
 
+  media::VideoCaptureObserver* capture_observer_;
+
   // Local cache of the enumerated video capture devices' names and capture
   // supported formats. A snapshot of the current devices and their capabilities
   // is composed in VideoCaptureDeviceFactory::EnumerateDeviceNames() and