Delete most of rendering/compositing.

sky/engine/core/rendering/compositing/CompositingTriggers.h

-/*
- * Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011, 2012 Apple, Inc. All rights reserved.
- * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
- * Copyright (C) 2012 Samsung Electronics. All rights reserved.
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public License
- * along with this library; see the file COPYING.LIB.  If not, write to
- * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
- * Boston, MA 02110-1301, USA.
- */
-
-#ifndef SKY_ENGINE_CORE_RENDERING_COMPOSITING_COMPOSITINGTRIGGERS_H_
-#define SKY_ENGINE_CORE_RENDERING_COMPOSITING_COMPOSITINGTRIGGERS_H_
-
-namespace blink {
-
-enum CompositingTrigger {
-    ScrollableInnerFrameTrigger = 1 << 1,
-    OverflowScrollTrigger = 1 << 2,
-    AllCompositingTriggers = 0xFFFFFFFF,
-};
-
-typedef unsigned CompositingTriggerFlags;
-
-}
-
-#endif  // SKY_ENGINE_CORE_RENDERING_COMPOSITING_COMPOSITINGTRIGGERS_H_