Update GrYUVGenerator to upload to texture vs use writePixels

Bug: skia:
Change-Id: I891ba25d2018008a32ef01608da9209cf2642b2e
Reviewed-on: https://skia-review.googlesource.com/102902
Commit-Queue: Greg Daniel <egdaniel@google.com>
Reviewed-by: Robert Phillips <robertphillips@google.com>
diff --git a/src/gpu/GrResourceProvider.cpp b/src/gpu/GrResourceProvider.cpp
index 9cf4e6c..3800383 100644
--- a/src/gpu/GrResourceProvider.cpp
+++ b/src/gpu/GrResourceProvider.cpp
@@ -113,6 +113,7 @@
 
 sk_sp<GrTexture> GrResourceProvider::createTexture(const GrSurfaceDesc& desc,
                                                    SkBudgeted budgeted,
+                                                   SkBackingFit fit,
                                                    const GrMipLevel& mipLevel) {
     ASSERT_SINGLE_OWNER
 
@@ -137,7 +138,7 @@
         // DDL TODO: remove this use of createInstantiatedProxy and convert it to a testing-only
         // method.
         sk_sp<GrTextureProxy> proxy = proxyProvider->createInstantiatedProxy(desc,
-                                                                             SkBackingFit::kExact,
+                                                                             fit,
                                                                              budgeted);
         if (proxy) {
             sk_sp<GrSurfaceContext> sContext = context->contextPriv().makeWrappedSurfaceContext(