Add rowBytes to createTestingOnlyBackendTexture

This is pulled out of:

https://skia-review.googlesource.com/c/skia/+/151983 (Test YUV images in DDL)

The YUV images seem to like to have row padding.

Change-Id: I517d2b63678beeafef88f86148fca15862176780
Reviewed-on: https://skia-review.googlesource.com/156367
Commit-Queue: Robert Phillips <robertphillips@google.com>
Reviewed-by: Greg Daniel <egdaniel@google.com>
diff --git a/tests/GrSurfaceTest.cpp b/tests/GrSurfaceTest.cpp
index 677145f..f796187 100644
--- a/tests/GrSurfaceTest.cpp
+++ b/tests/GrSurfaceTest.cpp
@@ -48,7 +48,7 @@
     REPORTER_ASSERT(reporter, static_cast<GrSurface*>(tex1.get()) == tex1->asTexture());
 
     GrBackendTexture backendTex = gpu->createTestingOnlyBackendTexture(
-        nullptr, 256, 256, kRGBA_8888_GrPixelConfig, false, GrMipMapped::kNo);
+        nullptr, 256, 256, GrColorType::kRGBA_8888, false, GrMipMapped::kNo);
 
     sk_sp<GrSurface> texRT2 =
             resourceProvider->wrapRenderableBackendTexture(backendTex, 1, kBorrow_GrWrapOwnership);