Add canFilterMaskGPU & filterMaskGPU to SkMaskFilter

tools/PictureRenderer.cpp

 /*
  * Copyright 2012 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "PictureRenderer.h"
 #include "picture_utils.h"
 #include "SamplePipeControllers.h"
@@ skipping 46 matching lines @@
     fCanvas.reset(this->setupCanvas());
 }
 
 class FlagsDrawFilter : public SkDrawFilter {
 public:
     FlagsDrawFilter(PictureRenderer::DrawFilterFlags* flags) :
         fFlags(flags) {}
 
     virtual bool filter(SkPaint* paint, Type t) {
         paint->setFlags(paint->getFlags() & ~fFlags[t] & SkPaint::kAllFlags);
-        if (PictureRenderer::kBlur_DrawFilterFlag & fFlags[t]) {
+        if (PictureRenderer::kMaskFilter_DrawFilterFlag & fFlags[t]) {
             SkMaskFilter* maskFilter = paint->getMaskFilter();
-            SkMaskFilter::BlurInfo blurInfo;
-            if (maskFilter && maskFilter->asABlur(&blurInfo)) {
+            if (NULL != maskFilter) {
                 paint->setMaskFilter(NULL);
             }
         }
         if (PictureRenderer::kHinting_DrawFilterFlag & fFlags[t]) {
             paint->setHinting(SkPaint::kNo_Hinting);
         } else if (PictureRenderer::kSlightHinting_DrawFilterFlag & fFlags[t]) {
             paint->setHinting(SkPaint::kSlight_Hinting);
         }
         return true;
     }
@@ skipping 771 matching lines @@
     virtual SkString getConfigNameInternal() SK_OVERRIDE {
         return SkString("picture_clone");
     }
 };
 
 PictureRenderer* CreatePictureCloneRenderer() {
     return SkNEW(PictureCloneRenderer);
 }
 
 } // namespace sk_tools