Make GrGpu::deleteTestingOnlyBackendTexture() take const GrBackendTexture&

Change-Id: Ibd00d0dc6d8c73628f26851e102defdbafab149b
Reviewed-on: https://skia-review.googlesource.com/113164
Reviewed-by: Greg Daniel <egdaniel@google.com>
Commit-Queue: Brian Salomon <bsalomon@google.com>
diff --git a/dm/DMSrcSink.cpp b/dm/DMSrcSink.cpp
index 0fedd8e..9f7814f 100644
--- a/dm/DMSrcSink.cpp
+++ b/dm/DMSrcSink.cpp
@@ -1713,7 +1713,7 @@
     if (!context->contextPriv().abandoned()) {
         surface.reset();
         if (backendTexture.isValid()) {
-            context->contextPriv().getGpu()->deleteTestingOnlyBackendTexture(&backendTexture);
+            context->contextPriv().getGpu()->deleteTestingOnlyBackendTexture(backendTexture);
         }
         if (backendRT.isValid()) {
             context->contextPriv().getGpu()->deleteTestingOnlyBackendRenderTarget(backendRT);