Add ability to extract YUV planes from SkImage

GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1513393002

Review URL: https://codereview.chromium.org/1513393002
diff --git a/src/gpu/SkGr.cpp b/src/gpu/SkGr.cpp
index 954bb80..62b7ff1 100644
--- a/src/gpu/SkGr.cpp
+++ b/src/gpu/SkGr.cpp
@@ -32,7 +32,7 @@
 #include "effects/GrDitherEffect.h"
 #include "effects/GrPorterDuffXferProcessor.h"
 #include "effects/GrXfermodeFragmentProcessor.h"
-#include "effects/GrYUVtoRGBEffect.h"
+#include "effects/GrYUVEffect.h"
 
 #ifndef SK_IGNORE_ETC1_SUPPORT
 #  include "ktx.h"