Update Skia's YUV API

src/codec/SkCodecImageGenerator.h

Index: src/codec/SkCodecImageGenerator.h
diff --git a/src/codec/SkCodecImageGenerator.h b/src/codec/SkCodecImageGenerator.h
index d2c74ab48295a171f2358a1130be9d37f9646707..6d34223110722478c1aa8a9407d93a4cb3799354 100644
--- a/src/codec/SkCodecImageGenerator.h
+++ b/src/codec/SkCodecImageGenerator.h
@@ -26,8 +26,9 @@ protected:
     bool onGetPixels(const SkImageInfo& info, void* pixels, size_t rowBytes, SkPMColor ctable[],
             int* ctableCount) override;
 
-    bool onGetYUV8Planes(SkISize sizes[3], void* planes[3], size_t rowBytes[3],
-            SkYUVColorSpace* colorSpace) override;
+    bool onQueryYUV8(SkYUVSizeInfo*, SkYUVColorSpace*) const override;
+
+    bool onGetYUV8Planes(const SkYUVSizeInfo&, void* planes[3]) override;
 
 private:
     /*
@@ -39,11 +40,5 @@ private:
     SkAutoTDelete<SkCodec> fCodec;
     SkAutoTUnref<SkData> fData;
 
-    // FIXME: These fields are necessary only until we change the API of SkImageGenerator
-    //        to match SkCodec.  Once the API is changed, they should be removed.
-    int fYWidth;
-    int fUWidth;
-    int fVWidth;
-
     typedef SkImageGenerator INHERITED;
 };