Add ASSERT() to avoid accidental leaking ServiceWorkerContainer to cross origin context.

Source/modules/serviceworkers/NavigatorServiceWorker.cpp

 // 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 "config.h"
 #include "modules/serviceworkers/NavigatorServiceWorker.h"
 
 #include "core/dom/Document.h"
 #include "core/frame/LocalDOMWindow.h"
 #include "core/frame/LocalFrame.h"
@@ skipping 36 matching lines @@
 NavigatorServiceWorker* NavigatorServiceWorker::toNavigatorServiceWorker(Navigator& navigator)
 {
     return static_cast<NavigatorServiceWorker*>(HeapSupplement<Navigator>::from(navigator, supplementName()));
 }
 
 const char* NavigatorServiceWorker::supplementName()
 {
     return "NavigatorServiceWorker";
 }
 
-ServiceWorkerContainer* NavigatorServiceWorker::serviceWorker(Navigator& navigator, ExceptionState& exceptionState)
+ServiceWorkerContainer* NavigatorServiceWorker::serviceWorker(ExecutionContext* executionContext, Navigator& navigator, ExceptionState& exceptionState)
 {
+    ASSERT(!navigator.frame() || executionContext->securityOrigin()->canAccessCheckSuborigins(navigator.frame()->securityContext()->securityOrigin()));
     return NavigatorServiceWorker::from(navigator).serviceWorker(exceptionState);
 }
 
 ServiceWorkerContainer* NavigatorServiceWorker::serviceWorker(ExceptionState& exceptionState)
 {
     if (frame() && !frame()->securityContext()->securityOrigin()->canAccessServiceWorkers()) {
         if (frame()->securityContext()->isSandboxed(SandboxOrigin))
             exceptionState.throwSecurityError("Service worker is disabled because the context is sandboxed and lacks the 'allow-same-origin' flag.");
         else
             exceptionState.throwSecurityError("Access to service workers is denied in this document origin.");
@@ skipping 15 matching lines @@
 }
 
 DEFINE_TRACE(NavigatorServiceWorker)
 {
     visitor->trace(m_serviceWorker);
     HeapSupplement<Navigator>::trace(visitor);
     DOMWindowProperty::trace(visitor);
 }
 
 } // namespace blink