PlzNavigate: Show error pages when the navigation failed before commit

content/browser/loader/navigation_resource_handler.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_resource_handler.h"
 
 #include "base/logging.h"
 #include "content/browser/devtools/devtools_netlog_observer.h"
 #include "content/browser/loader/navigation_url_loader_impl_core.h"
 #include "content/browser/loader/resource_request_info_impl.h"
@@ skipping 11 matching lines @@
 NavigationResourceHandler::NavigationResourceHandler(
     net::URLRequest* request,
     NavigationURLLoaderImplCore* core)
     : ResourceHandler(request),
       core_(core) {
   core_->set_resource_handler(this);
 }
 
 NavigationResourceHandler::~NavigationResourceHandler() {
   if (core_) {
-    core_->NotifyRequestFailed(net::ERR_ABORTED);
+    core_->NotifyRequestFailed(false, net::ERR_ABORTED);
     DetachFromCore();
   }
 }
 
 void NavigationResourceHandler::Cancel() {
   controller()->Cancel();
   core_ = nullptr;
 }
 
 void NavigationResourceHandler::FollowRedirect() {
@@ skipping 81 matching lines @@
   //
   // TODO(davidben): The net error code should be passed through StreamWriter
   // down to the stream's consumer. See https://crbug.com/426162.
   if (writer_.stream()) {
     writer_.Finalize();
     return;
   }
 
   if (core_) {
     DCHECK_NE(net::OK, status.error());
-    core_->NotifyRequestFailed(status.error());
+    core_->NotifyRequestFailed(request()->response_info().was_cached,
+                               status.error());
     DetachFromCore();
   }
 }
 
 void NavigationResourceHandler::OnDataDownloaded(int bytes_downloaded) {
   NOTREACHED();
 }
 
 void NavigationResourceHandler::DetachFromCore() {
   DCHECK(core_);
   core_->set_resource_handler(nullptr);
   core_ = nullptr;
 }
 
 }  // namespace content