Rename GrAccelData to SkLayerInfo and move it to src/core

src/gpu/GrLayerHoister.h

 /*
  * Copyright 2014 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef GrLayerHoister_DEFINED
 #define GrLayerHoister_DEFINED
 
 #include "SkPicture.h"
 #include "SkTDArray.h"
 
-class GrAccelData;
 struct GrCachedLayer;
 class GrReplacements;
 struct SkRect;
 
 class GrHoistedLayer {
 public:
     const SkPicture* fPicture;
     GrCachedLayer*   fLayer;
     SkIPoint         fOffset;
     SkMatrix         fPreMat;
@@ skipping 68 matching lines @@
     static void UnlockLayers(GrContext* context, const SkTDArray<GrHoistedLayer>& layers);
 
     /** Forceably remove all cached layers and release the atlas. Useful for debugging and timing.
         This is only functional when GR_CACHE_HOISTED_LAYERS is set to 1 in GrLayerCache.h
         @param context    Owner of the layer cache (and thus the layers)
      */
     static void PurgeCache(GrContext* context);
 };
 
 #endif