Convert the AutocompletePopupPositioner into a BubblePositioner in preparatio...

chrome/browser/views/bubble_border.h

Index: chrome/browser/views/bubble_border.h
===================================================================
--- chrome/browser/views/bubble_border.h	(revision 26251)
+++ chrome/browser/views/bubble_border.h	(working copy)
@@ -27,6 +27,12 @@
     return 4;
   }
 
+  // Gives the desired bounds (in screen coordinates) given the rect to position
+  // relative to and the size of the contained contents.  The contents are
+  // centered underneath the supplied rect.
+  gfx::Rect GetBounds(const gfx::Rect& position_relative_to,
+                      const gfx::Size& contents_size) const;
+
   // Overridden from views::Border:
   virtual void GetInsets(gfx::Insets* insets) const;