Remove "View Background Pages".

chrome/browser/app_controller_mac.mm

 // Copyright (c) 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.
 
 #import "chrome/browser/app_controller_mac.h"
 
 #include "base/auto_reset.h"
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/files/file_path.h"
@@ skipping 910 matching lines @@
         chrome::OpenHelpWindow(lastProfile, chrome::HELP_SOURCE_MENU);
       break;
     case IDC_SHOW_SYNC_SETUP:
       if (Browser* browser = ActivateBrowser(lastProfile))
         chrome::ShowBrowserSignin(browser, SyncPromoUI::SOURCE_MENU);
       else
         chrome::OpenSyncSetupWindow(lastProfile, SyncPromoUI::SOURCE_MENU);
       break;
     case IDC_TASK_MANAGER:
       content::RecordAction(UserMetricsAction("TaskManager"));
-      TaskManagerMac::Show(false);
+      TaskManagerMac::Show();
       break;
     case IDC_OPTIONS:
       [self showPreferences:sender];
       break;
   }
 }
 
 // Run a (background) application in a new tab.
 - (void)executeApplication:(id)sender {
   NSInteger tag = [sender tag];
@@ skipping 322 matching lines @@
         NSString* itemStr =
             base::SysUTF16ToNSString(UTF8ToUTF16((*cursor)->name()));
         scoped_nsobject<NSMenuItem> appItem([[NSMenuItem alloc]
             initWithTitle:itemStr
                    action:@selector(executeApplication:)
             keyEquivalent:@""]);
         [appItem setTarget:self];
         [appItem setTag:position];
         [appMenu addItem:appItem];
       }
-
-      scoped_nsobject<NSMenuItem> appMenuItem([[NSMenuItem alloc]
-          initWithTitle:menuStr
-                 action:@selector(executeApplication:)
-          keyEquivalent:@""]);
-      [appMenuItem setTarget:self];
-      [appMenuItem setTag:IDC_VIEW_BACKGROUND_PAGES];
-      [appMenuItem setSubmenu:appMenu];
-      [dockMenu addItem:appMenuItem];
     }
   }
 
   return dockMenu;
 }
 
 - (const std::vector<GURL>&)startupUrls {
   return startupUrls_;
 }
 
@@ skipping 29 matching lines @@
 
 //---------------------------------------------------------------------------
 
 namespace app_controller_mac {
 
 bool IsOpeningNewWindow() {
   return g_is_opening_new_window;
 }
 
 }  // namespace app_controller_mac