Revert of Switch to a more complete method of filtering hoisted layers

src/gpu/GrLayerCache.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 GrLayerCache_DEFINED
 #define GrLayerCache_DEFINED
 
@@ skipping 146 matching lines @@
         , fPaint(paint ? SkNEW_ARGS(SkPaint, (*paint)) : NULL)
         , fFilter(NULL)
         , fTexture(NULL)
         , fRect(SkIRect::MakeEmpty())
         , fPlot(NULL)
         , fUses(0)
         , fLocked(false) {
         SkASSERT(SK_InvalidGenID != pictureID);
 
         if (fPaint) {
-            if (fPaint->getImageFilter()) {
+            if (fPaint->getImageFilter() && fPaint->getImageFilter()->canFilterImageGPU()) {
                 fFilter = SkSafeRef(fPaint->getImageFilter());
                 fPaint->setImageFilter(NULL);
             }
         }
     }
 
     ~GrCachedLayer() {
         SkSafeUnref(fTexture);
         SkSafeUnref(fFilter);
         SkDELETE(fPaint);
@@ skipping 217 matching lines @@
         SkASSERT(fPlotLocks[plotIdx] > 0);
         --fPlotLocks[plotIdx];
     }
 
     // for testing
     friend class TestingAccess;
     int numLayers() const { return fLayerHash.count(); }
 };
 
 #endif