Disable bookmark apps on non-ChromeOS platforms.

chrome/browser/ui/cocoa/apps/app_shim_menu_controller_mac_browsertest.mm

 // Copyright 2013 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/ui/cocoa/apps/app_shim_menu_controller_mac.h"
 
 #import <Cocoa/Cocoa.h>
 
 #include "base/command_line.h"
 #include "base/mac/scoped_nsobject.h"
@@ skipping 22 matching lines @@
   enum AvailableApps { PACKAGED_1 = 0x1, PACKAGED_2 = 0x2, HOSTED = 0x4 };
 
   AppShimMenuControllerBrowserTest()
       : app_1_(nullptr),
         app_2_(nullptr),
         hosted_app_(nullptr),
         initial_menu_item_count_(0) {}
 
   void SetUpCommandLine(base::CommandLine* command_line) override {
     PlatformAppBrowserTest::SetUpCommandLine(command_line);
+    command_line->AppendSwitch(switches::kEnableNewBookmarkApps);
   }
 
   // Start testing apps and wait for them to launch. |flags| is a bitmask of
   // AvailableApps.
   void SetUpApps(int flags) {
 
     if (flags & PACKAGED_1) {
       ExtensionTestMessageListener listener_1("Launched", false);
       app_1_ = InstallAndLaunchPlatformApp("minimal_id");
       ASSERT_TRUE(listener_1.WaitUntilSatisfied());
@@ skipping 166 matching lines @@
 
   CheckHasAppMenus(app_1_);
   ExtensionService::UninstallExtensionHelper(
       extension_service(),
       app_1_->id(),
       extensions::UNINSTALL_REASON_FOR_TESTING);
   CheckNoAppMenus();
 }
 
 }  // namespace