Add SkColorSpace to GrDrawContext

src/gpu/GrYUVProvider.cpp

Index: src/gpu/GrYUVProvider.cpp
diff --git a/src/gpu/GrYUVProvider.cpp b/src/gpu/GrYUVProvider.cpp
index c35f57a68fea21d58a30d6b64855506022c056ca..e9b2ef5bf63bf677d53853afa3b8bc6a60340376 100644
--- a/src/gpu/GrYUVProvider.cpp
+++ b/src/gpu/GrYUVProvider.cpp
@@ -113,9 +113,11 @@ sk_sp<GrTexture> GrYUVProvider::refAsTexture(GrContext* ctx,
             }
     }
 
+    // We never want to perform color-space conversion during the decode
     sk_sp<GrDrawContext> drawContext(ctx->newDrawContext(SkBackingFit::kExact,
                                                          desc.fWidth, desc.fHeight,
-                                                         desc.fConfig, desc.fSampleCnt));
+                                                         desc.fConfig, nullptr,
+                                                         desc.fSampleCnt));
     if (!drawContext) {
         return nullptr;
     }