Use a direct include of the message_loop header in content/, part 2.

content/browser/media/media_internals_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 "content/browser/media/media_internals.h"
 
 #include "base/bind.h"
 #include "base/memory/scoped_ptr.h"
-#include "base/message_loop.h"
+#include "base/message_loop/message_loop.h"
 #include "content/public/test/test_browser_thread.h"
 #include "testing/gmock/include/gmock/gmock.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace content {
 namespace {
 
 class MockObserverBaseClass {
  public:
   ~MockObserverBaseClass() {}
@@ skipping 105 matching lines @@
   DeleteItem("some.item");
   EXPECT_FALSE(data()->Get("some.item", &out));
   EXPECT_TRUE(data()->Get("some", &out));
 
   DeleteItem("some");
   EXPECT_FALSE(data()->Get("some.item", &out));
   EXPECT_FALSE(data()->Get("some", &out));
 }
 
 }  // namespace content