Implement GPU occluded blur mask filter

include/core/SkMaskFilter.h

 
 /*
  * Copyright 2006 The Android Open Source Project
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 
 #ifndef SkMaskFilter_DEFINED
@@ skipping 111 matching lines @@
     /**
      *  Try to directly render a rounded rect mask filter into the target.  Returns
      *  true if drawing was successful.
      */
     virtual bool directFilterRRectMaskGPU(GrContext*,
                                           GrDrawContext* drawContext,
                                           GrPaint* grp,
                                           const GrClip&,
                                           const SkMatrix& viewMatrix,
                                           const SkStrokeRec& strokeRec,
-                                          const SkRRect& rrect) const;
+                                          const SkRRect& rrect,
+                                          const SkRRect& devRRect) const;
 
     /**
      * This function is used to implement filters that require an explicit src mask. It should only
      * be called if canFilterMaskGPU returned true and the maskRect param should be the output from
      * that call.
      * Implementations are free to get the GrContext from the src texture in order to create
      * additional textures and perform multiple passes.
      */
     virtual bool filterMaskGPU(GrTexture* src,
                                const SkMatrix& ctm,
@@ skipping 90 matching lines @@
      mask and then call filterMask(). If this returns true, the specified blitter will be called
      to render that mask. Returns false if filterMask() returned false.
      */
     bool filterRRect(const SkRRect& devRRect, const SkMatrix& ctm, const SkRasterClip&,
                      SkBlitter*) const;
 
     typedef SkFlattenable INHERITED;
 };
 
 #endif