Part 1 of dragging extensions on the shelf. This part was just about getting...

chrome/browser/extensions/extension_shelf.h

Index: chrome/browser/extensions/extension_shelf.h
===================================================================
--- chrome/browser/extensions/extension_shelf.h	(revision 17478)
+++ chrome/browser/extensions/extension_shelf.h	(working copy)
@@ -55,6 +55,11 @@
   virtual void BubbleBrowserWindowMoved(BrowserBubble* bubble);
   virtual void BubbleBrowserWindowClosed(BrowserBubble* bubble);
 
+  // Dragging toolstrips
+  void DragExtension();
+  void DropExtension(const gfx::Point& pt, bool cancel);
+  void DragHandleTo(const gfx::Point& pt);
+
  protected:
   // View
   virtual void ChildPreferredSizeChanged(View* child);
@@ -96,6 +101,9 @@
   // Timers for tracking mouse hovering.
   ScopedRunnableMethodFactory<ExtensionShelf> timer_factory_;
 
+  // A placeholder for a pending drag
+  View* drag_placeholder_view_;
+
   DISALLOW_COPY_AND_ASSIGN(ExtensionShelf);
 };