Switch to standard integer types in ash/.

ash/shell/shelf_delegate_impl.h

 // 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.
 
 #ifndef ASH_SHELL_SHELF_DELEGATE_IMPL_H_
 #define ASH_SHELL_SHELF_DELEGATE_IMPL_H_
 
 #include "ash/shelf/shelf_delegate.h"
 #include "base/compiler_specific.h"
+#include "base/macros.h"
 
 namespace aura {
 class Window;
 }
 
 namespace ash {
 namespace shell {
 
 class WindowWatcher;
 
@@ skipping 18 matching lines @@
   // Used to update Launcher. Owned by main.
   WindowWatcher* watcher_;
 
   DISALLOW_COPY_AND_ASSIGN(ShelfDelegateImpl);
 };
 
 }  // namespace shell
 }  // namespace ash
 
 #endif  // ASH_SHELL_SHELF_DELEGATE_IMPL_H_