Remove GraphicsLayer family of classes.

sky/engine/platform/graphics/gpu/DrawingBuffer.cpp

 /*
  * Copyright (c) 2010, Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 17 matching lines @@
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #include "sky/engine/config.h"
 
 #include "sky/engine/platform/graphics/gpu/DrawingBuffer.h"
 
 #include <algorithm>
 #include "gen/sky/platform/RuntimeEnabledFeatures.h"
 #include "sky/engine/platform/TraceEvent.h"
-#include "sky/engine/platform/graphics/GraphicsLayer.h"
+#include "sky/engine/platform/graphics/ImageBuffer.h"
 #include "sky/engine/platform/graphics/gpu/Extensions3DUtil.h"
 #include "sky/engine/public/platform/Platform.h"
 #include "sky/engine/public/platform/WebCompositorSupport.h"
 #include "sky/engine/public/platform/WebExternalBitmap.h"
 #include "sky/engine/public/platform/WebExternalTextureLayer.h"
 #include "sky/engine/public/platform/WebGraphicsContext3D.h"
 #include "sky/engine/public/platform/WebGraphicsContext3DProvider.h"
 #ifndef NDEBUG
 #include "sky/engine/wtf/RefCountedLeakCounter.h"
 #endif
@@ skipping 992 matching lines @@
 void DrawingBuffer::deleteChromiumImageForTexture(TextureInfo* info)
 {
     if (info->imageId) {
         m_context->releaseTexImage2DCHROMIUM(GL_TEXTURE_2D, info->imageId);
         m_context->destroyImageCHROMIUM(info->imageId);
         info->imageId = 0;
     }
 }
 
 } // namespace blink