Change a disabled MediaStreamVideoTrack to output black video frames for each incoming frame.

content/renderer/media/media_stream_video_track_unittest.cc

Index: content/renderer/media/media_stream_video_track_unittest.cc
diff --git a/content/renderer/media/media_stream_video_track_unittest.cc b/content/renderer/media/media_stream_video_track_unittest.cc
index 9b281a67d1553d985a436e261299956e1a96c2cf..2571ee4add25269b575b73229cf1e3cba93c3bdc 100644
--- a/content/renderer/media/media_stream_video_track_unittest.cc
+++ b/content/renderer/media/media_stream_video_track_unittest.cc
@@ -18,6 +18,9 @@
 
 namespace content {
 
+const uint8 kBlackValue = 0x00;
+const uint8 kColorValue = 0xAB;
+
 ACTION_P(RunClosure, closure) {
   closure.Run();
 }
@@ -43,9 +46,10 @@ class MediaStreamVideoTrackTest : public ::testing::Test {
     EXPECT_CALL(*sink, OnVideoFrame()).WillOnce(
         RunClosure(quit_closure));
     scoped_refptr<media::VideoFrame> frame =
-        media::VideoFrame::CreateBlackFrame(
+        media::VideoFrame::CreateColorFrame(
             gfx::Size(MediaStreamVideoSource::kDefaultWidth,
-                      MediaStreamVideoSource::kDefaultHeight));
+                      MediaStreamVideoSource::kDefaultHeight),
+            kColorValue, kColorValue, kColorValue, base::TimeDelta());
     mock_source()->DeliverVideoFrame(frame);
     run_loop.Run();
   }
@@ -163,24 +167,20 @@ TEST_F(MediaStreamVideoTrackTest, SetEnabled) {
 
   DeliverVideoFrameAndWaitForRenderer(&sink);
   EXPECT_EQ(1, sink.number_of_frames());
+  EXPECT_EQ(kColorValue, *sink.last_frame()->data(media::VideoFrame::kYPlane));
 
   video_track->SetEnabled(false);
   EXPECT_FALSE(sink.enabled());
 
-  scoped_refptr<media::VideoFrame> frame =
-      media::VideoFrame::CreateBlackFrame(
-          gfx::Size(MediaStreamVideoSource::kDefaultWidth,
-                    MediaStreamVideoSource::kDefaultHeight));
-  mock_source()->DeliverVideoFrame(frame);
-  // Wait for the IO thread to complete delivering frames.
-  io_message_loop()->RunUntilIdle();
-  EXPECT_EQ(1, sink.number_of_frames());
+  DeliverVideoFrameAndWaitForRenderer(&sink);
+  EXPECT_EQ(2, sink.number_of_frames());
+  EXPECT_EQ(kBlackValue, *sink.last_frame()->data(media::VideoFrame::kYPlane));
 
   video_track->SetEnabled(true);
   EXPECT_TRUE(sink.enabled());
-  mock_source()->DeliverVideoFrame(frame);
   DeliverVideoFrameAndWaitForRenderer(&sink);
-  EXPECT_EQ(2, sink.number_of_frames());
+  EXPECT_EQ(3, sink.number_of_frames());
+  EXPECT_EQ(kColorValue, *sink.last_frame()->data(media::VideoFrame::kYPlane));
   MediaStreamVideoSink::RemoveFromVideoTrack(&sink, track);
 }