mash: Remove shelf app menu item objects.

chrome/browser/ui/ash/launcher/app_window_launcher_item_controller.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/ui/ash/launcher/app_window_launcher_item_controller.h"
 
 #include <algorithm>
 
 #include "ash/wm/window_util.h"
 #include "base/memory/ptr_util.h"
@@ skipping 78 matching lines @@
   if (windows_.size() >= 1 && window_to_show->IsActive() &&
       event_type == ui::ET_KEY_RELEASED) {
     return ActivateOrAdvanceToNextAppWindow(window_to_show);
   }
 
   return ShowAndActivateOrMinimize(window_to_show);
 }
 
 ash::ShelfAppMenuItemList AppWindowLauncherItemController::GetAppMenuItems(
     int event_flags) {
+  // Return an empty item list to avoid showing an application menu.
   return ash::ShelfAppMenuItemList();
 }
 
+void AppWindowLauncherItemController::ExecuteCommand(uint32_t command_id,
+                                                     int event_flags) {
+  // This delegate does not support showing an application menu.
+  NOTIMPLEMENTED();
+}
+
 void AppWindowLauncherItemController::Close() {
   // Note: Closing windows may affect the contents of app_windows_.
   WindowList windows_to_close = windows_;
   for (auto* window : windows_)
     window->Close();
 }
 
 void AppWindowLauncherItemController::ActivateIndexedApp(size_t index) {
   if (index >= windows_.size())
     return;
@@ skipping 40 matching lines @@
   if (window_to_show->IsActive()) {
     // Coming here, only a single window is active. For keyboard activations
     // the window gets animated.
     AnimateWindow(window_to_show->GetNativeWindow(),
                   wm::WINDOW_ANIMATION_TYPE_BOUNCE);
   } else {
     return ShowAndActivateOrMinimize(window_to_show);
   }
   return ash::SHELF_ACTION_NONE;
 }