scaling API on SkPixmap

include/core/SkPixmap.h

Index: include/core/SkPixmap.h
diff --git a/include/core/SkPixmap.h b/include/core/SkPixmap.h
index faae85e797e7f262f63a165f2fa9e690779236c2..da97025cab03ae032dd3a7750607143c3fe5e9b9 100644
--- a/include/core/SkPixmap.h
+++ b/include/core/SkPixmap.h
@@ -9,6 +9,7 @@
 #define SkPixmap_DEFINED
 
 #include "SkColor.h"
+#include "SkFilterQuality.h"
 #include "SkImageInfo.h"
 
 class SkColorTable;
@@ -135,6 +136,15 @@ public:
     }
 
     /**
+     *  Copy the pixels from this pixmap into the dst pixmap, converting as needed into dst's
+     *  colortype/alphatype. If the conversion cannot be performed, false is returned.
+     *
+     *  If dst's dimensions differ from the src dimension, the image will be scaled, applying the
+     *  specified filter-quality.
+     */
+    bool scalePixels(const SkPixmap& dst, SkFilterQuality) const;
+
+    /**
      *  Returns true if pixels were written to (e.g. if colorType is kUnknown_SkColorType, this
      *  will return false). If subset does not intersect the bounds of this pixmap, returns false.
      */