PlzNavigate: Show error pages when the navigation failed before commit

content/public/test/test_navigation_observer.cc

 // Copyright (c) 2012 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/public/test/test_navigation_observer.h"
 
 #include "base/bind.h"
 #include "base/message_loop/message_loop.h"
 #include "base/run_loop.h"
 #include "base/stl_util.h"
@@ skipping 58 matching lines @@
       ui::PageTransition transition_type) override {
     parent_->OnDidCommitProvisionalLoadForFrame(
         render_frame_host, url, transition_type);
   }
 
   TestNavigationObserver* parent_;
 
   DISALLOW_COPY_AND_ASSIGN(TestWebContentsObserver);
 };
 
-TestNavigationObserver::TestNavigationObserver(
-    WebContents* web_contents,
-    int number_of_navigations)
+TestNavigationObserver::TestNavigationObserver(WebContents* web_contents,
+                                               int number_of_navigations)
     : navigation_started_(false),
       navigations_completed_(0),
       number_of_navigations_(number_of_navigations),
+      navigations_failed_(0),
       message_loop_runner_(new MessageLoopRunner),
       web_contents_created_callback_(
-          base::Bind(
-              &TestNavigationObserver::OnWebContentsCreated,
-              base::Unretained(this))) {
+          base::Bind(&TestNavigationObserver::OnWebContentsCreated,
+                     base::Unretained(this))) {
   if (web_contents)
     RegisterAsObserver(web_contents);
 }
 
-TestNavigationObserver::TestNavigationObserver(
-    WebContents* web_contents)
+TestNavigationObserver::TestNavigationObserver(WebContents* web_contents)
     : navigation_started_(false),
       navigations_completed_(0),
       number_of_navigations_(1),
+      navigations_failed_(0),
       message_loop_runner_(new MessageLoopRunner),
       web_contents_created_callback_(
-          base::Bind(
-              &TestNavigationObserver::OnWebContentsCreated,
-              base::Unretained(this))) {
+          base::Bind(&TestNavigationObserver::OnWebContentsCreated,
+                     base::Unretained(this))) {
   if (web_contents)
     RegisterAsObserver(web_contents);
 }
 
 TestNavigationObserver::~TestNavigationObserver() {
   StopWatchingNewWebContents();
 
   STLDeleteContainerPointers(web_contents_observers_.begin(),
                              web_contents_observers_.end());
 }
@@ skipping 65 matching lines @@
   last_navigation_succeeded_ = false;
 }
 
 void TestNavigationObserver::OnDidFailProvisionalLoad(
     RenderFrameHost* render_frame_host,
     const GURL& validated_url,
     int error_code,
     const base::string16& error_description) {
   last_navigation_url_ = validated_url;
   last_navigation_succeeded_ = false;
+  ++navigations_failed_;
 }
 
 void TestNavigationObserver::OnDidCommitProvisionalLoadForFrame(
     RenderFrameHost* render_frame_host,
     const GURL& url,
     ui::PageTransition transition_type) {
   last_navigation_url_ = url;
   last_navigation_succeeded_ = true;
 }
 
 }  // namespace content