Add support for the Rec601 YUV color space to GrYUVtoRGBEffect.

include/core/SkImageGenerator.h

 /*
  * Copyright 2013 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef SkImageGenerator_DEFINED
 #define SkImageGenerator_DEFINED
 
+#include "SkColor.h"
 #include "SkImageInfo.h"
-#include "SkColor.h"
 
 class SkBitmap;
 class SkData;
 class SkImageGenerator;
 
 /**
  *  Takes ownership of SkImageGenerator.  If this method fails for
  *  whatever reason, it will return false and immediatetely delete
  *  the generator.  If it succeeds, it will modify destination
  *  bitmap.
@@ skipping 91 matching lines @@
      *  If planes or rowBytes is NULL or if any entry in planes is NULL or if any entry in rowBytes
      *  is 0, this imagegenerator should output the sizes and return true if it can efficiently
      *  return YUV planar data. If it cannot, it should return false. Note that either planes and
      *  rowBytes are both fully defined and non NULL/non 0 or they are both NULL or have NULL or 0
      *  entries only. Having only partial planes/rowBytes information is not supported.
      *
      *  If all planes and rowBytes entries are non NULL or non 0, then it should copy the
      *  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],
+                       SkYUVColorSpace* colorSpace);
 
 protected:
     virtual SkData* onRefEncodedData();
     virtual bool onGetInfo(SkImageInfo* info);
     virtual bool onGetPixels(const SkImageInfo& info,
                              void* pixels, size_t rowBytes,
                              SkPMColor ctable[], int* ctableCount);
     virtual bool onGetYUV8Planes(SkISize sizes[3], void* planes[3], size_t rowBytes[3]);
+    virtual bool onGetYUV8Planes(SkISize sizes[3], void* planes[3], size_t rowBytes[3],
+                                 SkYUVColorSpace* colorSpace);
 };
 
 #endif  // SkImageGenerator_DEFINED