Move direct use of VideoCapturer::VideoAdapter to VideoSinkWants.

webrtc/media/base/videosourceinterface.h

Index: webrtc/media/base/videosourceinterface.h
diff --git a/webrtc/media/base/videosourceinterface.h b/webrtc/media/base/videosourceinterface.h
index 14624585432194c74bec680c6f18befb56ce79f5..1d7f78e7417c41aa9ce4a7dc35ebc703c2276dde 100644
--- a/webrtc/media/base/videosourceinterface.h
+++ b/webrtc/media/base/videosourceinterface.h
@@ -27,6 +27,15 @@ struct VideoSinkWants {
   // Tells the source whether the sink wants frames with rotation applied.
   // By default, the rotation is applied by the source.
   bool rotation_applied = true;
+
+  struct ResolutionRequest {

[nisse-webrtc, 2016/02/17 08:19:46]

This needs a comment. At first look, it seems a bit too complex.

[perkj_webrtc, 2016/02/17 17:16:29]

Changed to only store max_number_of_pixels for now. Maybe we will need
min_number_of_pixels in the future.

+    enum Change { NONE, UP, DOWN };
+    int from_width = 0;
+    int from_height = 0;
+    Change change = NONE;
+  };
+
+  ResolutionRequest resolution_request;
 };
 
 template <typename VideoFrameT>