Refactors some of the bookmark drag and drop code into a separate...

chrome/browser/bookmarks/bookmark_drag_data.h

Index: chrome/browser/bookmarks/bookmark_drag_data.h
===================================================================
--- chrome/browser/bookmarks/bookmark_drag_data.h	(revision 3822)
+++ chrome/browser/bookmarks/bookmark_drag_data.h	(working copy)
@@ -96,8 +96,11 @@
   bool has_single_url() const { return is_valid() && elements[0].is_url; }
 
   // Number of elements.
-  size_t size() { return elements.size(); }
+  size_t size() const { return elements.size(); }
 
+  // Returns true if this data is from the specified profile.
+  bool IsFromProfile(Profile* profile) const;
+
   // The actual elements written to the clipboard.
   std::vector<Element> elements;