Remove the video channel id completely.

webrtc/video_engine/encoder_state_feedback_unittest.cc

Index: webrtc/video_engine/encoder_state_feedback_unittest.cc
diff --git a/webrtc/video_engine/encoder_state_feedback_unittest.cc b/webrtc/video_engine/encoder_state_feedback_unittest.cc
index b61fc56b4ce1195528e69feaf0c95329be9aee73..9787acc144d53d870899fdb2b20dd4021cf32023 100644
--- a/webrtc/video_engine/encoder_state_feedback_unittest.cc
+++ b/webrtc/video_engine/encoder_state_feedback_unittest.cc
@@ -32,7 +32,7 @@ namespace webrtc {
 class MockVieEncoder : public ViEEncoder {
  public:
   explicit MockVieEncoder(ProcessThread* process_thread, PacedSender* pacer)
-      : ViEEncoder(1, 1, process_thread, nullptr, nullptr, pacer, nullptr) {}
+      : ViEEncoder(1, process_thread, nullptr, nullptr, pacer, nullptr) {}
   ~MockVieEncoder() {}
 
   MOCK_METHOD1(OnReceivedIntraFrameRequest,