Hooking up first simple CPU adaptation version.

BUG=
R=pbos@webrtc.org, stefan@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/1767004

git-svn-id: http://webrtc.googlecode.com/svn/trunk/webrtc@4384 4adac7df-926f-26a2-2b94-8c16560cd09d
diff --git a/video_engine/internal/video_send_stream.h b/video_engine/internal/video_send_stream.h
index f5f0516..571f428 100644
--- a/video_engine/internal/video_send_stream.h
+++ b/video_engine/internal/video_send_stream.h
@@ -28,11 +28,15 @@
 class ViERTP_RTCP;
 
 namespace internal {
+
+class ResolutionAdaptor;
+
 class VideoSendStream : public newapi::VideoSendStream,
                         public newapi::VideoSendStreamInput,
                         public webrtc::Transport {
  public:
   VideoSendStream(newapi::Transport* transport,
+                  bool overuse_detection,
                   webrtc::VideoEngine* video_engine,
                   const newapi::VideoSendStream::Config& config);
 
@@ -72,6 +76,7 @@
 
   int channel_;
   int capture_id_;
+  scoped_ptr<ResolutionAdaptor> overuse_observer_;
 };
 }  // namespace internal
 }  // namespace webrtc