Apply the layer's image filter to the hoisted image

src/gpu/SkGpuDevice.cpp

 /*
  * Copyright 2011 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkGpuDevice.h"
 
 #include "effects/GrBicubicEffect.h"
@@ skipping 1510 matching lines @@
 
     // drawDevice is defined to be in device coords.
     CHECK_SHOULD_DRAW(draw, true);
 
     GrRenderTarget* devRT = dev->accessRenderTarget();
     GrTexture* devTex;
     if (NULL == (devTex = devRT->asTexture())) {
         return;
     }
 
-    const SkBitmap& bm = dev->accessBitmap(false);
-    int w = bm.width();
-    int h = bm.height();
+    const SkImageInfo ii = dev->imageInfo();
+    int w = ii.width();
+    int h = ii.height();
 
     SkImageFilter* filter = paint.getImageFilter();
     // This bitmap will own the filtered result as a texture.
     SkBitmap filteredBitmap;
 
     if (filter) {
         SkIPoint offset = SkIPoint::Make(0, 0);
         SkMatrix matrix(*draw.fMatrix);
         matrix.postTranslate(SkIntToScalar(-x), SkIntToScalar(-y));
         SkIRect clipBounds = SkIRect::MakeWH(devTex->width(), devTex->height());
@@ skipping 337 matching lines @@
 #endif
 }
 
 SkImageFilter::Cache* SkGpuDevice::getImageFilterCache() {
     // We always return a transient cache, so it is freed after each
     // filter traversal.
     return SkImageFilter::Cache::Create(kDefaultImageFilterCacheSize);
 }
 
 #endif