Remove unnecessary message_loop_proxy.h includes

remoting/protocol/monitored_video_stub_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 "remoting/protocol/monitored_video_stub.h"
 
 #include "base/message_loop/message_loop.h"
-#include "base/message_loop/message_loop_proxy.h"
 #include "base/run_loop.h"
 #include "base/test/test_timeouts.h"
 #include "remoting/protocol/protocol_mock_objects.h"
 #include "testing/gmock/include/gmock/gmock.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 using ::testing::_;
 using ::testing::AnyNumber;
 using ::testing::AtMost;
 using ::testing::InvokeWithoutArgs;
@@ skipping 70 matching lines @@
   message_loop_.PostDelayedTask(
       FROM_HERE,
       base::MessageLoop::QuitClosure(),
       // The delay should be much greater than |kTestOverrideDelayMilliseconds|.
       TestTimeouts::tiny_timeout());
   message_loop_.Run();
 }
 
 }  // namespace protocol
 }  // namespace remoting