Revert of Make GrDrawState and GrPaint take GrEffect* instead of GrEffectRef*.

include/core/SkImageFilter.h

 /*
  * Copyright 2011 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef SkImageFilter_DEFINED
 #define SkImageFilter_DEFINED
 
 #include "SkFlattenable.h"
 #include "SkMatrix.h"
 #include "SkRect.h"
 
 class SkBitmap;
 class SkColorFilter;
 class SkBaseDevice;
 struct SkIPoint;
-class GrEffect;
+class GrEffectRef;
 class GrTexture;
 
 /**
  *  Base class for image filters. If one is installed in the paint, then
  *  all drawing occurs as usual, but it is as if the drawing happened into an
  *  offscreen (before the xfermode is applied). This offscreen bitmap will
  *  then be handed to the imagefilter, who in turn creates a new bitmap which
  *  is what will finally be drawn to the device (using the original xfermode).
  */
 class SK_API SkImageFilter : public SkFlattenable {
@@ skipping 244 matching lines @@
      *  If effect is non-NULL, a new GrEffect instance is stored
      *  in it.  The caller assumes ownership of the stage, and it is up to the
      *  caller to unref it.
      *
      *  The effect can assume its vertexCoords space maps 1-to-1 with texels
      *  in the texture.  "matrix" is a transformation to apply to filter
      *  parameters before they are used in the effect. Note that this function
      *  will be called with (NULL, NULL, SkMatrix::I()) to query for support,
      *  so returning "true" indicates support for all possible matrices.
      */
-    virtual bool asNewEffect(GrEffect** effect,
+    virtual bool asNewEffect(GrEffectRef** effect,
                              GrTexture*,
                              const SkMatrix& matrix,
                              const SkIRect& bounds) const;
 
 private:
     typedef SkFlattenable INHERITED;
     int fInputCount;
     SkImageFilter** fInputs;
     CropRect fCropRect;
 };
 
 #endif