Support drag&drop for startup pages

chrome/browser/custom_home_pages_table_model.h

Index: chrome/browser/custom_home_pages_table_model.h
diff --git a/chrome/browser/custom_home_pages_table_model.h b/chrome/browser/custom_home_pages_table_model.h
index 51455645ac4a1a38a1b081419494705e875cc48a..0403d8d796391a3af03ba57fb69c53a68eefda81 100644
--- a/chrome/browser/custom_home_pages_table_model.h
+++ b/chrome/browser/custom_home_pages_table_model.h
@@ -33,6 +33,11 @@ class CustomHomePagesTableModel : public ui::TableModel {
   // Sets the set of urls that this model contains.
   void SetURLs(const std::vector<GURL>& urls);
 
+  // Collect all entries indexed by |index_list|, and moves them to be right
+  // before the element addressed by |insert_before|. Used by Drag&Drop.
+  // Expects |index_list| to be ordered ascending.
+  void MoveURLs(int insert_before, const std::vector<int>& index_list);
+
   // Adds an entry at the specified index.
   void Add(int index, const GURL& url);