Fix leak in drawBitmapNine

src/gpu/SkGpuDevice.cpp

 /*
  * Copyright 2011 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkGpuDevice.h"
 
 #include "GrBlurUtils.h"
@@ skipping 1495 matching lines @@
         SkRect srcR, dstR;
         while (iter.next(&srcR, &dstR)) {
             this->drawBitmapRect(draw, bitmap, &srcR, dstR, paint,
                                  SkCanvas::kStrict_SrcRectConstraint);
         }
         return;
     }
 
     GrTextureParams params = GrTextureParams::ClampNoFilter();
 
-    GrTexture* texture(GrRefCachedBitmapTexture(this->context(), bitmap, params));
+    SkAutoTUnref<GrTexture> texture(GrRefCachedBitmapTexture(this->context(), bitmap, params));
     if (nullptr == texture) {
         return;
     }
 
     SkMatrix texMatrix;
     texMatrix.setIDiv(texture->width(), texture->height());
 
     SkAutoTUnref<const GrFragmentProcessor> fp(GrSimpleTextureEffect::Create(texture, texMatrix,
                                                                              params));
 
@@ skipping 350 matching lines @@
     return SkImageFilter::Cache::Create(kDefaultImageFilterCacheSize);
 }
 
 SkImageFilter::Cache* SkGpuDevice::getImageFilterCache() {
     // We always return a transient cache, so it is freed after each
     // filter traversal.
     return SkGpuDevice::NewImageFilterCache();
 }
 
 #endif