[Cast] VideoFrameFactory interface to vend frames with encoder affinity.

media/cast/sender/video_sender_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 <stdint.h>
 
 #include <vector>
 
 #include "base/bind.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/test/simple_test_tick_clock.h"
 #include "media/base/video_frame.h"
 #include "media/cast/cast_environment.h"
 #include "media/cast/logging/simple_event_subscriber.h"
 #include "media/cast/net/cast_transport_config.h"
 #include "media/cast/net/cast_transport_sender_impl.h"
 #include "media/cast/net/pacing/paced_sender.h"
+#include "media/cast/sender/video_frame_factory.h"
 #include "media/cast/sender/video_sender.h"
 #include "media/cast/test/fake_single_thread_task_runner.h"
 #include "media/cast/test/fake_video_encode_accelerator.h"
 #include "media/cast/test/utility/default_config.h"
 #include "media/cast/test/utility/video_utility.h"
 #include "testing/gmock/include/gmock/gmock.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace media {
 namespace cast {
@@ skipping 501 matching lines @@
   RtcpCastMessage cast_feedback(1);
   cast_feedback.media_ssrc = 2;
   cast_feedback.ack_frame_id = 0;
   video_sender_->OnReceivedCastFeedback(cast_feedback);
 
   transport_.SetPause(false);
   RunTasks(33);
   EXPECT_EQ(0, transport_.number_of_rtp_packets());
 }
 
+TEST_F(VideoSenderTest, CheckVideoFrameFactoryIsNull) {
+  EXPECT_EQ(STATUS_VIDEO_INITIALIZED, InitEncoder(false, true));
+  EXPECT_EQ(nullptr, video_sender_->CreateVideoFrameFactory().get());
+}
+
 }  // namespace cast
 }  // namespace media