Remove TiledBacking / TileCache code

Source/WebCore/platform/graphics/TiledBackingStoreClient.h

-/*
- Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies)
- 
- 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 TiledBackingStoreClient_h
-#define TiledBackingStoreClient_h
-
-namespace WebCore {
-
-#if USE(TILED_BACKING_STORE)
-
-class Color;
-class GraphicsContext;
-
-class TiledBackingStoreClient {
-public:
-    virtual ~TiledBackingStoreClient() { }
-    virtual void tiledBackingStorePaintBegin() = 0;
-    virtual void tiledBackingStorePaint(GraphicsContext*, const IntRect&) = 0;
-    virtual void tiledBackingStorePaintEnd(const Vector<IntRect>& paintedArea) = 0;
-    virtual void tiledBackingStoreHasPendingTileCreation() { }
-    virtual IntRect tiledBackingStoreContentsRect() = 0;
-    virtual IntRect tiledBackingStoreVisibleRect() = 0;
-    virtual Color tiledBackingStoreBackgroundColor() const = 0;
-};
-
-#else
-class TiledBackingStoreClient {};
-#endif
-
-}
-
-#endif