Add wrapBackendTextureAsRenderTarget API

src/gpu/GrTextureProvider.cpp

Index: src/gpu/GrTextureProvider.cpp
diff --git a/src/gpu/GrTextureProvider.cpp b/src/gpu/GrTextureProvider.cpp
index 7d720eb1212dd0455953892c75e550155975fe03..bc9653fe1ef1f85ee081379ccf0d3e6053966c00 100644
--- a/src/gpu/GrTextureProvider.cpp
+++ b/src/gpu/GrTextureProvider.cpp
@@ -138,6 +138,15 @@ GrRenderTarget* GrTextureProvider::wrapBackendRenderTarget(const GrBackendRender
                                                                          kBorrow_GrWrapOwnership);
 }
 
+GrRenderTarget* GrTextureProvider::wrapBackendTextureAsRenderTarget(const GrBackendTextureDesc& desc,
+                                                                    GrWrapOwnership ownership) {
+    ASSERT_SINGLE_OWNER
+    if (this->isAbandoned()) {
+      return nullptr;
+    }
+    return fGpu->wrapBackendTextureAsRenderTarget(desc, ownership);
+}
+
 void GrTextureProvider::assignUniqueKeyToResource(const GrUniqueKey& key, GrGpuResource* resource) {
     ASSERT_SINGLE_OWNER
     if (this->isAbandoned() || !resource) {