Fix IWYU violators that don't include scoped_ptr.h in Android build.

chrome/browser/android/compositor/decoration_title.h

 // Copyright 2014 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 CHROME_BROWSER_ANDROID_COMPOSITOR_DECORATION_TITLE_H_
 #define CHROME_BROWSER_ANDROID_COMPOSITOR_DECORATION_TITLE_H_
 
 #include <jni.h>
 
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
+#include "base/memory/scoped_ptr.h"
 #include "cc/resources/ui_resource_client.h"
 #include "third_party/skia/include/core/SkBitmap.h"
 #include "ui/gfx/geometry/size.h"
 #include "ui/gfx/transform.h"
 
 namespace cc {
 class Layer;
 class UIResourceLayer;
 }
 
@@ skipping 67 matching lines @@
 
   LayerTitleCache* layer_title_cache_;
 
   DISALLOW_COPY_AND_ASSIGN(DecorationTitle);
 };
 
 }  // namespace android
 }  // namespace chrome
 
 #endif  // CHROME_BROWSER_ANDROID_COMPOSITOR_DECORATION_TITLE_H_