Remove "Use billing for shipping" checkbox in favor of item in suggestions menu.

chrome/browser/ui/autofill/autofill_dialog_models.h

Index: chrome/browser/ui/autofill/autofill_dialog_models.h
diff --git a/chrome/browser/ui/autofill/autofill_dialog_models.h b/chrome/browser/ui/autofill/autofill_dialog_models.h
index 2020e5d5ddd4b507d63e716a4d210db8e1a298a8..7a599d22622cb3de7a219de53fdf1ac7d6299483 100644
--- a/chrome/browser/ui/autofill/autofill_dialog_models.h
+++ b/chrome/browser/ui/autofill/autofill_dialog_models.h
@@ -25,7 +25,8 @@ class SuggestionsMenuModelDelegate {
   virtual ~SuggestionsMenuModelDelegate();
 
   // Called when a menu item has been activated.
-  virtual void SuggestionItemSelected(const SuggestionsMenuModel& model) = 0;
+  virtual void SuggestionItemSelected(SuggestionsMenuModel* model,
+                                      const std::string& item_key) = 0;
 };
 
 // A model for the dropdowns that allow the user to select from different
@@ -69,6 +70,9 @@ class SuggestionsMenuModel : public ui::SimpleMenuModel,
   // there are no items.
   std::string GetItemKeyForCheckedItem() const;
 
+  // Sets which item is checked.
+  void SetCheckedItem(const std::string& item_key);
+
   int checked_item() { return checked_item_; }
 
   // ui::SimpleMenuModel::Delegate implementation.
@@ -87,7 +91,8 @@ class SuggestionsMenuModel : public ui::SimpleMenuModel,
 
   SuggestionsMenuModelDelegate* delegate_;
 
-  // The command id (and index) of the item which is currently checked.
+  // The command id (and index) of the item which is currently checked. Only one
+  // item is checked at a time.
   int checked_item_;
 
   DISALLOW_COPY_AND_ASSIGN(SuggestionsMenuModel);