Reland of Add framerate to VideoSinkWants and ability to signal on overuse

webrtc/test/call_test.cc

Index: webrtc/test/call_test.cc
diff --git a/webrtc/test/call_test.cc b/webrtc/test/call_test.cc
index ad55421f667bc1f73fb195ecf2cb5dd8f3ecd49b..c0f3fe0239a91d842f9f5e2512a9ec114ab7bbbd 100644
--- a/webrtc/test/call_test.cc
+++ b/webrtc/test/call_test.cc
@@ -290,7 +290,7 @@ void CallTest::CreateFrameGeneratorCapturerWithDrift(Clock* clock,
       width, height, framerate * speed, clock));
   video_send_stream_->SetSource(
       frame_generator_capturer_.get(),
-      VideoSendStream::DegradationPreference::kBalanced);
+      VideoSendStream::DegradationPreference::kMaintainFramerate);
 }
 
 void CallTest::CreateFrameGeneratorCapturer(int framerate,
@@ -300,7 +300,7 @@ void CallTest::CreateFrameGeneratorCapturer(int framerate,
       test::FrameGeneratorCapturer::Create(width, height, framerate, clock_));
   video_send_stream_->SetSource(
       frame_generator_capturer_.get(),
-      VideoSendStream::DegradationPreference::kBalanced);
+      VideoSendStream::DegradationPreference::kMaintainFramerate);
 }
 
 void CallTest::CreateFakeAudioDevices(