Add `SkIRect bounds()` convenience method to SkImageInfo and SkBitmap.

include/core/SkBitmap.h

Index: include/core/SkBitmap.h
diff --git a/include/core/SkBitmap.h b/include/core/SkBitmap.h
index b36a1fd3fddc59b211c21be88efd367af01bfb53..06bea79f0d6ba9c12a641aa11d78831b2b397f3b 100644
--- a/include/core/SkBitmap.h
+++ b/include/core/SkBitmap.h
@@ -83,6 +83,9 @@ public:
     SkColorType colorType() const { return fInfo.colorType(); }
     SkAlphaType alphaType() const { return fInfo.alphaType(); }
 
+    SkIRect shape() const { return fInfo.shape(); }

[reed1, 2014/10/23 14:39:44]

We already have getBounds(SkIRect*). I'm fine if we want a variant that returns
the rect, but I don't see the value of introducing a new label like "shape".

[hal.canary, 2014/10/24 18:23:31]

Acknowledged.

+    SkISize dimensions() const { return fInfo.dimensions(); }
+
     /**
      *  Return the number of bytes per pixel based on the colortype. If the colortype is
      *  kUnknown_SkColorType, then 0 is returned.