Use a direct include of the message_loop header in remoting/.

remoting/host/setup/native_messaging_reader_unittest.cc

 // Copyright 2013 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/host/setup/native_messaging_reader.h"
 
 #include "base/basictypes.h"
 #include "base/bind.h"
 #include "base/memory/scoped_ptr.h"
-#include "base/message_loop.h"
+#include "base/message_loop/message_loop.h"
 #include "base/platform_file.h"
 #include "base/run_loop.h"
 #include "base/values.h"
 #include "remoting/host/setup/test_util.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace remoting {
 
 class NativeMessagingReaderTest : public testing::Test {
  public:
@@ skipping 133 matching lines @@
   Run();
   EXPECT_TRUE(message_);
   base::DictionaryValue* message_dict;
   EXPECT_TRUE(message_->GetAsDictionary(&message_dict));
   int result;
   EXPECT_TRUE(message_dict->GetInteger("foo", &result));
   EXPECT_EQ(42, result);
 }
 
 }  // namespace remoting