Retract GrRenderTarget from SkGpuBlurUtils

src/effects/SkBlurImageFilter.cpp

 /*
  * Copyright 2011 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.
  */
 
 #include "SkBlurImageFilter.h"
 
 #include "SkAutoPixmapStorage.h"
@@ skipping 102 matching lines @@
             offset->fX = inputBounds.x();
             offset->fY = inputBounds.y();
             return input->makeSubset(inputBounds.makeOffset(-inputOffset.x(),
                                                             -inputOffset.y()));
         }
 
         offset->fX = dstBounds.fLeft;
         offset->fY = dstBounds.fTop;
         inputBounds.offset(-inputOffset);
         dstBounds.offset(-inputOffset);
-        SkRect inputBoundsF(SkRect::Make(inputBounds));
         sk_sp<GrDrawContext> drawContext(SkGpuBlurUtils::GaussianBlur(
                                                                   context,
                                                                   inputTexture.get(),
                                                                   source->props().isGammaCorrect(),
-                                                                  SkRect::Make(dstBounds),
-                                                                  &inputBoundsF,
+                                                                  dstBounds,
+                                                                  &inputBounds,
                                                                   sigma.x(),
                                                                   sigma.y()));
         if (!drawContext) {
             return nullptr;
         }
 
         return SkSpecialImage::MakeFromGpu(SkIRect::MakeWH(dstBounds.width(), dstBounds.height()),
                                            kNeedNewImageUniqueID_SpecialImage,
                                            drawContext->asTexture(), &source->props());
     }
@@ skipping 109 matching lines @@
     str->appendf("SkBlurImageFilter: (");
     str->appendf("sigma: (%f, %f) input (", fSigma.fWidth, fSigma.fHeight);
 
     if (this->getInput(0)) {
         this->getInput(0)->toString(str);
     }
 
     str->append("))");
 }
 #endif