PlzNavigate: Show error pages when the navigation failed before commit

content/browser/loader/navigation_url_loader_impl.cc

 // 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 "content/browser/loader/navigation_url_loader_impl.h"
 
 #include "base/bind.h"
 #include "base/location.h"
 #include "content/browser/frame_host/navigation_request_info.h"
 #include "content/browser/loader/navigation_url_loader_delegate.h"
@@ skipping 46 matching lines @@
 }
 
 void NavigationURLLoaderImpl::NotifyResponseStarted(
     const scoped_refptr<ResourceResponse>& response,
     scoped_ptr<StreamHandle> body) {
   DCHECK_CURRENTLY_ON(BrowserThread::UI);
 
   delegate_->OnResponseStarted(response, body.Pass());
 }
 
-void NavigationURLLoaderImpl::NotifyRequestFailed(int net_error) {
+void NavigationURLLoaderImpl::NotifyRequestFailed(bool in_cache,
+                                                  int net_error) {
   DCHECK_CURRENTLY_ON(BrowserThread::UI);
 
-  delegate_->OnRequestFailed(net_error);
+  delegate_->OnRequestFailed(in_cache, net_error);
 }
 
 void NavigationURLLoaderImpl::NotifyRequestStarted(base::TimeTicks timestamp) {
   DCHECK_CURRENTLY_ON(BrowserThread::UI);
 
   delegate_->OnRequestStarted(timestamp);
 }
 
 }  // namespace content