Use a direct include of the message_loop header in chrome/test/, chrome/tools/, chrome/utility/.

chrome/test/base/interactive_test_utils_gtk.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 "chrome/test/base/interactive_test_utils.h"
 
 #include <gtk/gtk.h>
 
 #include "base/bind.h"
 #include "base/logging.h"
-#include "base/message_loop.h"
+#include "base/message_loop/message_loop.h"
 #include "chrome/browser/ui/browser.h"
 #include "chrome/browser/ui/browser_window.h"
 #include "chrome/browser/ui/gtk/view_id_util.h"
 #include "ui/base/gtk/gtk_screen_util.h"
 #include "ui/base/test/ui_controls.h"
 
 namespace ui_test_utils {
 
 namespace {
 // Check if the focused widget for |root| is |target| or a child of |target|.
@@ skipping 53 matching lines @@
                                int state,
                                const base::Closure& task) {
   gfx::Rect bounds = ui::GetWidgetScreenBounds(widget);
   ui_controls::SendMouseMoveNotifyWhenDone(
       bounds.x() + bounds.width() / 2,
       bounds.y() + bounds.height() / 2,
       base::Bind(&internal::ClickTask, button, state, task));
 }
 
 }  // namespace ui_test_utils