Mac: Unbreak --no-gpu-sandbox.

chrome/common/chrome_application_mac.mm

 // Copyright (c) 2009 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/common/chrome_application_mac.h"
 
 #include "base/logging.h"
 
 @interface CrApplication ()
 - (void)setHandlingSendEvent:(BOOL)handlingSendEvent;
@@ skipping 51 matching lines @@
 ScopedSendingEvent::ScopedSendingEvent()
     : app_(static_cast<CrApplication*>([CrApplication sharedApplication])),
       handling_([app_ isHandlingSendEvent]) {
   [app_ setHandlingSendEvent:YES];
 }
 
 ScopedSendingEvent::~ScopedSendingEvent() {
   [app_ setHandlingSendEvent:handling_];
 }
 
+void RegisterCrApp() {
+  [CrApplication sharedApplication];
+}
+
 }  // namespace chrome_application_mac