Revert 137075 - Get rid of Image::Image(SkBitmap*)

ui/gfx/image/image.h

Index: ui/gfx/image/image.h
===================================================================
--- ui/gfx/image/image.h	(revision 137075)
+++ ui/gfx/image/image.h	(working copy)
@@ -62,6 +62,10 @@
   // Creates an empty image with no representations.
   Image();
 
+  // Creates a new image with the default representation. The object will take
+  // ownership of the image.
+  explicit Image(const SkBitmap* bitmap);
+
   // Creates a new image by copying the bitmap for use as the default
   // representation.
   explicit Image(const SkBitmap& bitmap);