Retract GrRenderTarget from SkGpuBlurUtils

src/effects/SkGpuBlurUtils.h

 /*
  * Copyright 2013 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef SkGpuBlurUtils_DEFINED
 #define SkGpuBlurUtils_DEFINED
 
@@ skipping 16 matching lines @@
     * @param dstBounds       The destination bounds, relative to the source texture.
     * @param srcBounds       The source bounds, relative to the source texture. If non-null,
     *                        no pixels will be sampled outside of this rectangle.
     * @param sigmaX          The blur's standard deviation in X.
     * @param sigmaY          The blur's standard deviation in Y.
     * @return                The drawContext containing the blurred result.
     */
     sk_sp<GrDrawContext> GaussianBlur(GrContext* context,
                                       GrTexture* srcTexture,
                                       bool gammaCorrect,
-                                      const SkRect& dstBounds,
-                                      const SkRect* srcBounds,
+                                      const SkIRect& dstBounds,
+                                      const SkIRect* srcBounds,
                                       float sigmaX,
                                       float sigmaY);
-
 };
 
 #endif
 #endif