Added default implementations of GetAcceleratorForCommandId.

ui/views/examples/menu_example.cc

Index: ui/views/examples/menu_example.cc
diff --git a/ui/views/examples/menu_example.cc b/ui/views/examples/menu_example.cc
index 8f86c615e0152614d8b526f85a7bbf3b2f1f7a93..7f38c5d853fdca18fa40e2086f49afae6229ab48 100644
--- a/ui/views/examples/menu_example.cc
+++ b/ui/views/examples/menu_example.cc
@@ -31,8 +31,6 @@ class ExampleMenuModel : public ui::SimpleMenuModel,
   // ui::SimpleMenuModel::Delegate:
   bool IsCommandIdChecked(int command_id) const override;
   bool IsCommandIdEnabled(int command_id) const override;
-  bool GetAcceleratorForCommandId(int command_id,
-                                  ui::Accelerator* accelerator) const override;
   void ExecuteCommand(int command_id, int event_flags) override;
 
  private:
@@ -119,13 +117,6 @@ bool ExampleMenuModel::IsCommandIdEnabled(int command_id) const {
   return command_id != COMMAND_GO_HOME;
 }
 
-bool ExampleMenuModel::GetAcceleratorForCommandId(
-    int command_id,
-    ui::Accelerator* accelerator) const {
-  // We don't use this in the example.
-  return false;
-}
-
 void ExampleMenuModel::ExecuteCommand(int command_id, int event_flags) {
   switch (command_id) {
     case COMMAND_DO_SOMETHING: {