Add MessagePipe interface. Use it in ChannelDispatcherBase.

remoting/protocol/client_video_dispatcher_unittest.cc

 // Copyright 2015 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 "remoting/protocol/client_video_dispatcher.h"
 
 #include "base/bind.h"
 #include "base/memory/scoped_vector.h"
 #include "base/message_loop/message_loop.h"
 #include "base/run_loop.h"
 #include "remoting/base/buffered_socket_writer.h"
 #include "remoting/base/constants.h"
 #include "remoting/proto/video.pb.h"
 #include "remoting/protocol/fake_stream_socket.h"
+#include "remoting/protocol/message_reader.h"
 #include "remoting/protocol/message_serialization.h"
 #include "remoting/protocol/video_stub.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace remoting {
 namespace protocol {
 
 class ClientVideoDispatcherTest : public testing::Test,
                                   public VideoStub,
                                   public ChannelDispatcherBase::EventHandler {
@@ skipping 151 matching lines @@
   base::RunLoop().RunUntilIdle();
 
   // Verify order of Ack messages.
   ASSERT_EQ(2U, ack_messages_.size());
   EXPECT_EQ(kTestFrameId, ack_messages_[0]->frame_id());
   EXPECT_EQ(kTestFrameId + 1, ack_messages_[1]->frame_id());
 }
 
 }  // namespace protocol
 }  // namespace remoting