Add support for the Rec601 YUV color space to GrYUVtoRGBEffect.

include/core/SkImageGenerator.h

Index: include/core/SkImageGenerator.h
diff --git a/include/core/SkImageGenerator.h b/include/core/SkImageGenerator.h
index 4eb5cf85d67709b0801e48e4d863b0568ffc84da..097a7b25f5ab18a9e34f07781bf212cd60a7473c 100644
--- a/include/core/SkImageGenerator.h
+++ b/include/core/SkImageGenerator.h
@@ -8,8 +8,9 @@
 #ifndef SkImageGenerator_DEFINED
 #define SkImageGenerator_DEFINED
 
-#include "SkImageInfo.h"
 #include "SkColor.h"
+#include "SkImageInfo.h"
+#include "SkPixelRef.h"
 
 class SkBitmap;
 class SkData;
@@ -121,7 +122,8 @@ public:
      *  associated YUV data into those planes of memory supplied by the caller. It should validate
      *  that the sizes match what it expected. If the sizes do not match, it should return false.
      */
-    bool getYUV8Planes(SkISize sizes[3], void* planes[3], size_t rowBytes[3]);
+    bool getYUV8Planes(SkISize sizes[3], void* planes[3], size_t rowBytes[3],
+                       SkPixelRef::YUVColorSpace* colorSpace);
 
 protected:
     virtual SkData* onRefEncodedData();
@@ -130,6 +132,8 @@ protected:
                              void* pixels, size_t rowBytes,
                              SkPMColor ctable[], int* ctableCount);
     virtual bool onGetYUV8Planes(SkISize sizes[3], void* planes[3], size_t rowBytes[3]);

[rileya (GONE FROM CHROMIUM), 2014/09/11 06:59:30]

I'm retaining the original interface, but if Blink's usage is changed can we
safely remove this afterwards?

+    virtual bool onGetYUV8Planes(SkISize sizes[3], void* planes[3], size_t rowBytes[3],
+                                 SkPixelRef::YUVColorSpace* colorSpace);
 };
 
 #endif  // SkImageGenerator_DEFINED