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

chromeos/ime/xkeyboard_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 "chromeos/ime/xkeyboard.h"
 
 #include <algorithm>
 #include <set>
 #include <string>
 
 #include "base/logging.h"
 #include "base/memory/scoped_ptr.h"
-#include "base/message_loop.h"
+#include "base/message_loop/message_loop.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 #include <X11/Xlib.h>
 
 namespace chromeos {
 namespace input_method {
 
 namespace {
 
 class XKeyboardTest : public testing::Test {
@@ skipping 177 matching lines @@
 
   // Restore the initial state.
   EXPECT_TRUE(XKeyboard::SetAutoRepeatRate(rate));
   EXPECT_TRUE(XKeyboard::GetAutoRepeatRateForTesting(&tmp));
   EXPECT_EQ(rate.initial_delay_in_ms, tmp.initial_delay_in_ms);
   EXPECT_EQ(rate.repeat_interval_in_ms, tmp.repeat_interval_in_ms);
 }
 
 }  // namespace input_method
 }  // namespace chromeos