Fix flake in TwoStreamsSendAndReceive.

webrtc/media/base/videoengine_unittest.h

 /*
  *  Copyright (c) 2014 The WebRTC project authors. All Rights Reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
@@ skipping 1045 matching lines @@
     // Stream should already be deleted.
     EXPECT_FALSE(channel_->RemoveSendStream(kSsrcs4[kSsrcsSize - 1]));
   }
 
   // Two streams one channel tests.
 
   // Tests that we can send and receive frames.
   void TwoStreamsSendAndReceive(const cricket::VideoCodec& codec) {
     SetUpSecondStream();
     // Test sending and receiving on first stream.
-    EXPECT_TRUE(SetOneCodec(codec));
-    EXPECT_TRUE(SetSend(true));
-    EXPECT_TRUE(channel_->SetSink(kDefaultReceiveSsrc, &renderer_));
-    EXPECT_EQ(0, renderer_.num_rendered_frames());
-    EXPECT_TRUE(SendFrame());
-    // Since multiple streams share this link we should be receiving smaller
-    // initial frames (start at QVGA since shared bitrate is 150k each).
-    EXPECT_FRAME_WAIT(1, codec.width / 2, codec.height / 2, kTimeout);
-    std::unique_ptr<const rtc::CopyOnWriteBuffer> p(GetRtpPacket(0));
-    EXPECT_EQ(codec.id, GetPayloadType(p.get()));
+    SendAndReceive(codec);
     // Test sending and receiving on second stream.
     EXPECT_EQ_WAIT(1, renderer2_.num_rendered_frames(), kTimeout);
     EXPECT_GT(NumRtpPackets(), 0);
     EXPECT_EQ(1, renderer2_.num_rendered_frames());
   }
 
   const std::unique_ptr<webrtc::Call> call_;
   E engine_;
   std::unique_ptr<cricket::FakeVideoCapturer> video_capturer_;
   std::unique_ptr<cricket::FakeVideoCapturer> video_capturer_2_;
   std::unique_ptr<C> channel_;
   cricket::FakeNetworkInterface network_interface_;
   cricket::FakeVideoRenderer renderer_;
   cricket::VideoMediaChannel::Error media_error_;
 
   // Used by test cases where 2 streams are run on the same channel.
   cricket::FakeVideoRenderer renderer2_;
 };
 
 #endif  // WEBRTC_MEDIA_BASE_VIDEOENGINE_UNITTEST_H_  NOLINT