Cast: deliver video frames on the IO thread

content/renderer/media/media_stream_video_source_unittest.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include <string>
 #include <vector>
 
 #include "base/bind.h"
 #include "base/message_loop/message_loop.h"
 #include "base/run_loop.h"
@@ skipping 89 matching lines @@
                            int capture_height,
                            const blink::WebMediaConstraints& constraints,
                            int expected_width,
                            int expected_height) {
     // Expect the source to start capture with the supported resolution.
     blink::WebMediaStreamTrack track =
         CreateTrackAndStartSource(constraints, capture_width, capture_height,
                                   30);
 
     MockMediaStreamVideoSink sink;
-    MediaStreamVideoSink::AddToVideoTrack(&sink, track);
-
+    MediaStreamVideoSink::AddToVideoTrack(
+        &sink, sink.GetDeliverFrameCB(), track);
     DeliverVideoFrameAndWaitForRenderer(capture_width, capture_height, &sink);
     EXPECT_EQ(1, sink.number_of_frames());
 
     // Expect the delivered frame to be cropped.
     EXPECT_EQ(expected_height, sink.frame_size().height());
     EXPECT_EQ(expected_width, sink.frame_size().width());
     MediaStreamVideoSink::RemoveFromVideoTrack(&sink, track);
   }
 
   void DeliverVideoFrameAndWaitForRenderer(int width, int height,
@@ skipping 300 matching lines @@
   MockMediaConstraintFactory factory;
   factory.AddOptional(MediaStreamVideoSource::kMaxWidth, 800);
   factory.AddOptional(MediaStreamVideoSource::kMaxHeight, 700);
 
   // Expect the source to start capture with the supported resolution.
   blink::WebMediaStreamTrack track =
       CreateTrackAndStartSource(factory.CreateWebMediaConstraints(),
                                 640, 480, 30);
 
   MockMediaStreamVideoSink sink;
-  MediaStreamVideoSink::AddToVideoTrack(&sink, track);
+  MediaStreamVideoSink::AddToVideoTrack(
+      &sink, sink.GetDeliverFrameCB(), track);
   EXPECT_EQ(0, sink.number_of_frames());
   DeliverVideoFrameAndWaitForRenderer(320, 240, &sink);
   EXPECT_EQ(1, sink.number_of_frames());
   // Expect the delivered frame to be passed unchanged since its smaller than
   // max requested.
   EXPECT_EQ(320, sink.frame_size().width());
   EXPECT_EQ(240, sink.frame_size().height());
 
   DeliverVideoFrameAndWaitForRenderer(640, 480, &sink);
   EXPECT_EQ(2, sink.number_of_frames());
@@ skipping 28 matching lines @@
   EXPECT_TRUE(MediaStreamVideoSource::IsConstraintSupported(
         MediaStreamVideoSource::kMaxAspectRatio));
   EXPECT_TRUE(MediaStreamVideoSource::IsConstraintSupported(
       MediaStreamVideoSource::kMinAspectRatio));
 
   EXPECT_FALSE(MediaStreamVideoSource::IsConstraintSupported(
       "something unsupported"));
 }
 
 }  // namespace content