Added default implementations of GetAcceleratorForCommandId.

chrome/browser/download/download_shelf_context_menu.cc

Index: chrome/browser/download/download_shelf_context_menu.cc
diff --git a/chrome/browser/download/download_shelf_context_menu.cc b/chrome/browser/download/download_shelf_context_menu.cc
index fe8769cf1c10be9cb9b12754f0f0f2bb638f0cf3..0b9fc60c1314776520aac31a2e32341f4c3863d6 100644
--- a/chrome/browser/download/download_shelf_context_menu.cc
+++ b/chrome/browser/download/download_shelf_context_menu.cc
@@ -86,12 +86,6 @@ void DownloadShelfContextMenu::ExecuteCommand(int command_id, int event_flags) {
       static_cast<DownloadCommands::Command>(command_id));
 }
 
-bool DownloadShelfContextMenu::GetAcceleratorForCommandId(
-    int command_id,
-    ui::Accelerator* accelerator) const {
-  return false;
-}
-
 bool DownloadShelfContextMenu::IsItemForCommandIdDynamic(int command_id) const {
   return false;
 }