arc: Prevent showing Opt-in UI when it is not expected.

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

 // Copyright 2012 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/launcher_context_menu.h"
 
 #include <string>
 
 #include "ash/desktop_background/user_wallpaper_delegate.h"
 #include "ash/metrics/user_metrics_recorder.h"
@@ skipping 142 matching lines @@
           OpenSetWallpaperPage();
       break;
     default:
       NOTREACHED();
   }
 }
 
 void LauncherContextMenu::AddPinMenu() {
   // Expect an item with a none zero id to add pin/unpin menu item.
   DCHECK(item_.id);
+  int menu_pin_string_id;
   const std::string app_id = controller_->GetAppIDForShelfID(item_.id);
-  int menu_pin_string_id;
-  if (!controller_->CanPin(app_id))
-    menu_pin_string_id = IDS_LAUNCHER_CONTEXT_MENU_PIN_ENFORCED_BY_POLICY;
-  else if (controller_->IsPinned(item_.id))
-    menu_pin_string_id = IDS_LAUNCHER_CONTEXT_MENU_UNPIN;
-  else
-    menu_pin_string_id = IDS_LAUNCHER_CONTEXT_MENU_PIN;
+  switch (controller_->GetPinnable(app_id)) {
+    case AppListControllerDelegate::PIN_EDITABLE:
+      menu_pin_string_id = controller_->IsPinned(item_.id)
+                               ? IDS_LAUNCHER_CONTEXT_MENU_UNPIN
+                               : IDS_LAUNCHER_CONTEXT_MENU_PIN;
+      break;
+    case AppListControllerDelegate::PIN_FIXED:
+      menu_pin_string_id = IDS_LAUNCHER_CONTEXT_MENU_PIN_ENFORCED_BY_POLICY;
+      break;
+    case AppListControllerDelegate::NO_PIN:
+      return;
+    default:
+      NOTREACHED();
+      return;
+  }
   AddItemWithStringId(MENU_PIN, menu_pin_string_id);
 }
 
 void LauncherContextMenu::AddShelfOptionsMenu() {
   // In fullscreen, the launcher is either hidden or autohidden depending
   // on thethe type of fullscreen. Do not show the auto-hide menu item while in
   // while in fullscreen because it is confusing when the preference appears
   // not to apply.
   if (!IsFullScreenMode() &&
       CanUserModifyShelfAutoHideBehavior(controller_->profile())) {
@@ skipping 20 matching lines @@
     case MENU_PIN:
     case MENU_AUTO_HIDE:
     case MENU_ALIGNMENT_MENU:
     case MENU_CHANGE_WALLPAPER:
       LauncherContextMenu::ExecuteCommand(command_id, event_flags);
       return true;
     default:
       return false;
   }
 }