Revert "Revert "Plumb GrBackendTexture throughout skia.""

This reverts commit 7fa5c31c2c9af834bee66d5fcf476e250076c8d6.

Reason for revert: Relanding this change now that other fixes have landed.

Original change's description:
> Revert "Plumb GrBackendTexture throughout skia."
> 
> This reverts commit 7da62b9059f3c1d31624a0e4da96ee5f908f9c12.
> 
> Reason for revert: fix android roll
> 
> Original change's description:
> > Plumb GrBackendTexture throughout skia.
> > 
> > Bug: skia:
> > Change-Id: I1bae6768ee7229818a83ba608035a1f7867e6875
> > Reviewed-on: https://skia-review.googlesource.com/13645
> > Commit-Queue: Greg Daniel <egdaniel@google.com>
> > Reviewed-by: Robert Phillips <robertphillips@google.com>
> > 
> 
> TBR=egdaniel@google.com,bsalomon@google.com,robertphillips@google.com,brianosman@google.com,reviews@skia.org,stani@google.com
> NOPRESUBMIT=true
> NOTREECHECKS=true
> NOTRY=true
> 
> Change-Id: I5cb8763cc837c83ebc6d10366fe2dd3efe35fb89
> Reviewed-on: https://skia-review.googlesource.com/13773
> Reviewed-by: Stan Iliev <stani@google.com>
> Commit-Queue: Stan Iliev <stani@google.com>
> 

TBR=egdaniel@google.com,bsalomon@google.com,robertphillips@google.com,reviews@skia.org,brianosman@google.com,stani@google.com
# Not skipping CQ checks because original CL landed > 1 day ago.

Change-Id: I92bc074e4fe37fa5c83186afadc472c03802e8f2
Reviewed-on: https://skia-review.googlesource.com/13975
Reviewed-by: Greg Daniel <egdaniel@google.com>
Commit-Queue: Greg Daniel <egdaniel@google.com>
diff --git a/tests/BlendTest.cpp b/tests/BlendTest.cpp
index 0acbd07..20ea6e0 100644
--- a/tests/BlendTest.cpp
+++ b/tests/BlendTest.cpp
@@ -21,6 +21,7 @@
 #include "GrResourceProvider.h"
 #include "GrSurfaceContext.h"
 #include "GrSurfaceProxy.h"
+#include "GrTest.h"
 #include "GrTexture.h"
 #endif
 
@@ -99,16 +100,16 @@
         return nullptr;
     }
 
-    GrBackendTextureDesc desc;
-    desc.fFlags = kRenderTarget_GrBackendTextureFlag;
-    desc.fOrigin = origin;
-    desc.fWidth = width;
-    desc.fHeight = height;
-    desc.fConfig = config;
-    desc.fSampleCnt = sampleCnt;
-    desc.fTextureHandle = (*backingSurface)->getTextureHandle();
+    GrBackendTexture backendTex =
+            GrTest::CreateBackendTexture(context->contextPriv().getBackend(),
+                                         width,
+                                         height,
+                                         config,
+                                         (*backingSurface)->getTextureHandle());
     sk_sp<SkSurface> surface =
-            SkSurface::MakeFromBackendTextureAsRenderTarget(context, desc, nullptr);
+            SkSurface::MakeFromBackendTextureAsRenderTarget(context, backendTex, origin,
+                                                            sampleCnt, nullptr, nullptr);
+
     return surface;
 }
 }