Add support for creating texture backed images where Skia will delete the texture.

src/gpu/GrTextureProvider.cpp

 
 /*
  * Copyright 2015 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "GrTextureProvider.h"
 #include "GrTexturePriv.h"
@@ skipping 89 matching lines @@
         }
     }
 
     if (!(kNoCreate_ScratchTextureFlag & flags)) {
         return fGpu->createTexture(*desc, true, NULL, 0);
     }
 
     return NULL;
 }
 
-GrTexture* GrTextureProvider::wrapBackendTexture(const GrBackendTextureDesc& desc) {
+GrTexture* GrTextureProvider::wrapBackendTexture(const GrBackendTextureDesc& desc,
+                                                 GrWrapOwnership ownership) {
     if (this->isAbandoned()) {
         return NULL;
     }
-    return fGpu->wrapBackendTexture(desc);
+    return fGpu->wrapBackendTexture(desc, ownership);
 }
 
 GrRenderTarget* GrTextureProvider::wrapBackendRenderTarget(const GrBackendRenderTargetDesc& desc) {
-    return this->isAbandoned() ? NULL : fGpu->wrapBackendRenderTarget(desc);
+    return this->isAbandoned() ? NULL : fGpu->wrapBackendRenderTarget(desc,
+                                                                      kBorrow_GrWrapOwnership);
 }
 
 void GrTextureProvider::assignUniqueKeyToResource(const GrUniqueKey& key, GrGpuResource* resource) {
     if (this->isAbandoned() || !resource) {
         return;
     }
     resource->resourcePriv().setUniqueKey(key);
 }
 
 bool GrTextureProvider::existsResourceWithUniqueKey(const GrUniqueKey& key) const {
     return this->isAbandoned() ? false : fCache->hasUniqueKey(key);
 }
 
 GrGpuResource* GrTextureProvider::findAndRefResourceByUniqueKey(const GrUniqueKey& key) {
     return this->isAbandoned() ? NULL : fCache->findAndRefUniqueResource(key);
 }