Removed SSRC knowledge from ViEEncoder.

webrtc/video/video_send_stream.h

Index: webrtc/video/video_send_stream.h
diff --git a/webrtc/video/video_send_stream.h b/webrtc/video/video_send_stream.h
index dba44482ca939914ceb4fa20f6c90fb5bf66e530..fcfcb3c4a2ed13a0f1dfc841ac558320c53b128c 100644
--- a/webrtc/video/video_send_stream.h
+++ b/webrtc/video/video_send_stream.h
@@ -23,7 +23,6 @@
 #include "webrtc/video/payload_router.h"
 #include "webrtc/video/send_statistics_proxy.h"
 #include "webrtc/video/video_capture_input.h"
-#include "webrtc/video/vie_channel.h"
 #include "webrtc/video/vie_encoder.h"
 #include "webrtc/video_receive_stream.h"
 #include "webrtc/video_send_stream.h"
@@ -33,9 +32,9 @@ namespace webrtc {
 class BitrateAllocator;
 class CallStats;
 class CongestionController;
+class IvfFileWriter;
 class ProcessThread;
 class RtpRtcp;
-class ViEChannel;
 class ViEEncoder;
 class VieRemb;
 
@@ -126,6 +125,10 @@ class VideoSendStream : public webrtc::VideoSendStream,
   BitrateAllocator* const bitrate_allocator_;
   VieRemb* const remb_;
 
+  static const bool kEnableFrameRecording = false;
+  static const int kMaxLayers = 3;
+  std::unique_ptr<IvfFileWriter> file_writers_[kMaxLayers];
+
   rtc::PlatformThread encoder_thread_;
   rtc::Event encoder_wakeup_event_;
   volatile int stop_encoder_thread_;