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

ash/wm/image_grid_unittest.cc

Index: ash/wm/image_grid_unittest.cc
===================================================================
--- ash/wm/image_grid_unittest.cc	(revision 137075)
+++ ash/wm/image_grid_unittest.cc	(working copy)
@@ -17,8 +17,8 @@
 
 // Creates a gfx::Image with the requested dimensions.
 gfx::Image* CreateImage(const gfx::Size& size) {
-  SkBitmap bitmap;
-  bitmap.setConfig(SkBitmap::kARGB_8888_Config, size.width(), size.height());
+  SkBitmap* bitmap = new SkBitmap();
+  bitmap->setConfig(SkBitmap::kARGB_8888_Config, size.width(), size.height());
   return new gfx::Image(bitmap);
 }