Implement SkPicture::bytesUsed() for SkRecord backend

include/utils/SkPictureUtils.h

Index: include/utils/SkPictureUtils.h
diff --git a/include/utils/SkPictureUtils.h b/include/utils/SkPictureUtils.h
index c35e1c74090996c8daf1f71f96b4966ef15f7616..8cefbc349968ae5bc869e3f7e1faf1cdde06ae3c 100644
--- a/include/utils/SkPictureUtils.h
+++ b/include/utils/SkPictureUtils.h
@@ -78,6 +78,9 @@ public:
      *  and rect information.
      */
     static void GatherPixelRefsAndRects(SkPicture* pict, SkPixelRefContainer* prCont);
+
+    /** May return zero if the SkPicture implementation doesn't support counting. */
+    static size_t approximateBytesUsed(const SkPicture* pict);

[reed1, 2014/11/17 21:32:26]

nit: Skia Static Methods Are Capitalized.

"Used"? Can the name or dox give a better idea of what is being measured?

[tomhudson, 2014/11/17 22:12:15]

Done.
    /**
     *  How many bytes are allocated to hold the SkPicture.
     *  Includes operations, parameters, bounding data, deletion listeners;
     *  does not include large objects that SkRecord holds a reference to
     *  (e.g. paths, pixels backing bitmaps).
     */

Happy to rename if we've got a better candidate.

 };
 
 #endif