Add 2-lines summary to CC/Address for Wallet items.

ui/base/models/simple_menu_model.h

Index: ui/base/models/simple_menu_model.h
diff --git a/ui/base/models/simple_menu_model.h b/ui/base/models/simple_menu_model.h
index 06917f3de0ed236682f392d5e55620e810aea651..7ab284ea83ca5c97ab4f2b9be7c1159812fd99a8 100644
--- a/ui/base/models/simple_menu_model.h
+++ b/ui/base/models/simple_menu_model.h
@@ -38,9 +38,10 @@ class UI_EXPORT SimpleMenuModel : public MenuModel {
         int command_id,
         ui::Accelerator* accelerator) = 0;
 
-    // Some command ids have labels and icons that change over time.
+    // Some command ids have labels, sub-labels and icons that change over time.
     virtual bool IsItemForCommandIdDynamic(int command_id) const;
     virtual string16 GetLabelForCommandId(int command_id) const;
+    virtual string16 GetSubLabelForCommandId(int command_id) const;
     // Gets the icon for the item with the specified id, returning true if there
     // is an icon, false otherwise.
     virtual bool GetIconForCommandId(int command_id,
@@ -114,6 +115,9 @@ class UI_EXPORT SimpleMenuModel : public MenuModel {
   // Sets the icon for the item at |index|.
   void SetIcon(int index, const gfx::Image& icon);
 
+  // Sets the sub-label for the item at |index|.
+  void SetSubLabel(int index, const string16& sublabel);
+
   // Clears all items. Note that it does not free MenuModel of submenu.
   void Clear();
 
@@ -128,6 +132,7 @@ class UI_EXPORT SimpleMenuModel : public MenuModel {
   virtual ui::MenuSeparatorType GetSeparatorTypeAt(int index) const OVERRIDE;
   virtual int GetCommandIdAt(int index) const OVERRIDE;
   virtual string16 GetLabelAt(int index) const OVERRIDE;
+  virtual string16 GetSubLabelAt(int index) const OVERRIDE;
   virtual bool IsItemDynamicAt(int index) const OVERRIDE;
   virtual bool GetAcceleratorAt(int index,
                                 ui::Accelerator* accelerator) const OVERRIDE;