Revert "Revert "Mark wrapped textures imported into SkImages as "read only".""

This reverts commit ff4ccaa9fcfbcf29c476eda973febf4b2d6dc974.

Bug: skia:8509
Change-Id: If4a059d6e6e412ec1d6be2c70663d59c362e91d2
Reviewed-on: https://skia-review.googlesource.com/c/175249
Reviewed-by: Brian Salomon <bsalomon@google.com>
Commit-Queue: Brian Salomon <bsalomon@google.com>
diff --git a/src/gpu/GrContext.cpp b/src/gpu/GrContext.cpp
index 06eb6c4..1b2d13c 100644
--- a/src/gpu/GrContext.cpp
+++ b/src/gpu/GrContext.cpp
@@ -928,7 +928,8 @@
                                                                  sk_sp<SkColorSpace> colorSpace) {
     ASSERT_SINGLE_OWNER_PRIV
 
-    sk_sp<GrSurfaceProxy> proxy = this->proxyProvider()->wrapBackendTexture(tex, origin);
+    sk_sp<GrSurfaceProxy> proxy = this->proxyProvider()->wrapBackendTexture(
+            tex, origin, kBorrow_GrWrapOwnership, kRW_GrIOType);
     if (!proxy) {
         return nullptr;
     }