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

base/win/wrapped_window_proc_unittest.cc

 // Copyright (c) 2011 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 "base/message_loop/message_loop.h"
 #include "base/win/wrapped_window_proc.h"
-#include "base/message_loop.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace {
 
 DWORD kExceptionCode = 12345;
 WPARAM kCrashMsg = 98765;
 
 // A trivial WindowProc that generates an exception.
 LRESULT CALLBACK TestWindowProc(HWND hwnd, UINT message,
                                 WPARAM wparam, LPARAM lparam) {
@@ skipping 53 matching lines @@
   // Before generating the exception we make sure that the filter will see it.
   TestWrappedExceptionFiter wrapper;
   base::win::WinProcExceptionFilter old_filter =
       base::win::SetWinProcExceptionFilter(TestWrappedExceptionFiter::Filter);
 
   SendMessage(window, kCrashMsg, 0, 0);
   EXPECT_TRUE(wrapper.called());
 
   base::win::SetWinProcExceptionFilter(old_filter);
 }