Allow asynchronous deferral in NavigationSimulator

content/browser/frame_host/navigation_handle_impl.cc

 // Copyright 2015 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 "content/browser/frame_host/navigation_handle_impl.h"
 
 #include <iterator>
 
 #include "base/logging.h"
 #include "content/browser/appcache/appcache_navigation_handle.h"
@@ skipping 854 matching lines @@
   return true;
 }
 
 void NavigationHandleImpl::RunCompleteCallback(
     NavigationThrottle::ThrottleCheckResult result) {
   DCHECK(result != NavigationThrottle::DEFER);
 
   ThrottleChecksFinishedCallback callback = complete_callback_;
   complete_callback_.Reset();
 
+  if (!complete_callback_for_testing_.is_null()) {
+    complete_callback_for_testing_.Run(result);
+    complete_callback_for_testing_.Reset();
+  }
+
   if (!callback.is_null())
     callback.Run(result);
 
   // No code after running the callback, as it might have resulted in our
   // destruction.
 }
 
 void NavigationHandleImpl::RegisterNavigationThrottles() {
   // Register the navigation throttles. The vector returned by
   // CreateThrottlesForNavigation is not assigned to throttles_ directly because
@@ skipping 49 matching lines @@
     if (node->current_url().EqualsIgnoringRef(url_)) {
       if (found_self_reference)
         return true;
       found_self_reference = true;
     }
   }
   return false;
 }
 
 }  // namespace content