Revert of Fast blurred rectangles on GPU

include/core/SkMaskFilter.h

Index: include/core/SkMaskFilter.h
diff --git a/include/core/SkMaskFilter.h b/include/core/SkMaskFilter.h
index 20dc3797213a8c7cfd962220258a5bb29dd15c07..ce0debd4426f923768cd7dd4e8f835ed91659ca0 100644
--- a/include/core/SkMaskFilter.h
+++ b/include/core/SkMaskFilter.h
@@ -15,7 +15,6 @@
 #include "SkPaint.h"
 
 class GrContext;
-class GrPaint;
 class SkBitmap;
 class SkBlitter;
 class SkBounder;
@@ -23,7 +22,6 @@
 class SkPath;
 class SkRasterClip;
 class SkRRect;
-class SkStrokeRec;
 
 /** \class SkMaskFilter
 
@@ -94,15 +92,6 @@
                                   const SkIRect& clipBounds,
                                   const SkMatrix& ctm,
                                   SkRect* maskRect) const;
-
-    /**
-     *  Try to directly render the mask filter into the target.  Returns
-     *  true if drawing was successful.
-     */
-    virtual bool directFilterMaskGPU(GrContext* context,
-                                     GrPaint* grp,
-                                     const SkStrokeRec& strokeRec,
-                                     const SkPath& path) const;
 
     /**
      * This function is used to implement filters that require an explicit src mask. It should only