Use a direct include of the message_loop header in content/, part 1.

content/browser/geolocation/win7_location_provider_unittest_win.cc

 // Copyright (c) 2012 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/bind.h"
-#include "base/message_loop.h"
+#include "base/message_loop/message_loop.h"
+#include "content/browser/geolocation/win7_location_api_win.h"
 #include "content/browser/geolocation/win7_location_provider_win.h"
-#include "content/browser/geolocation/win7_location_api_win.h"
 #include "content/public/common/geoposition.h"
 #include "testing/gmock/include/gmock/gmock.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 using testing::_;
 using testing::AtLeast;
 using testing::DoDefault;
 using testing::Invoke;
 using testing::Return;
 
@@ skipping 119 matching lines @@
   EXPECT_CALL(*api_, SetHighAccuracy(true))
       .WillOnce(Return(true));
   EXPECT_TRUE(provider()->StartProvider(true));
   main_message_loop_.Run();
   Geoposition position;
   provider()->GetPosition(&position);
   EXPECT_FALSE(position.Validate());
 }
 
 }  // namespace content