Cache render targets that render to wrapped textures

tests/ImageFilterCacheTest.cpp

  /*
   * Copyright 2016 Google Inc.
   *
   * Use of this source code is governed by a BSD-style license that can be
   * found in the LICENSE file.
   */
 
 #include "Test.h"
 
 #include "SkBitmap.h"
@@ skipping 182 matching lines @@
         return;
     }
 
     GrBackendTextureDesc backendDesc;
     backendDesc.fConfig = kSkia8888_GrPixelConfig;
     backendDesc.fFlags = kNone_GrBackendTextureFlag;
     backendDesc.fWidth = kFullSize;
     backendDesc.fHeight = kFullSize;
     backendDesc.fSampleCnt = 0;
     backendDesc.fTextureHandle = srcTexture->getTextureHandle();
-    sk_sp<SkImage> srcImage(SkImage::MakeFromTexture(context, backendDesc, kPremul_SkAlphaType));
+    sk_sp<SkImage> srcImage(SkImage::MakeFromTextureCopy(context, backendDesc, kPremul_SkAlphaType));
     if (!srcImage) {
         return;
     }
+    srcTexture.reset();
 
     test_image_backed(reporter, srcImage);
 }
 
 DEF_GPUTEST_FOR_RENDERING_CONTEXTS(ImageFilterCache_GPUBacked, reporter, context) {
 
     SkAutoTUnref<GrTexture> srcTexture(create_texture(context));
     if (!srcTexture) {
         return;
     }
@@ skipping 10 matching lines @@
                                                                 kNeedNewImageUniqueID_SpecialImage,
                                                                 srcTexture));
 
     test_find_existing(reporter, fullImg, subsetImg);
     test_dont_find_if_diff_key(reporter, fullImg, subsetImg);
     test_internal_purge(reporter, fullImg);
     test_explicit_purging(reporter, fullImg, subsetImg);
 }
 #endif