Fix headless_browsertests failures with PlzNavigate.

content/browser/devtools/render_frame_devtools_agent_host.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/browser/devtools/render_frame_devtools_agent_host.h"
 
 #include <tuple>
 #include <utility>
 
 #include "base/guid.h"
@@ skipping 364 matching lines @@
 void RenderFrameDevToolsAgentHost::OnBeforeNavigation(
     NavigationHandle* navigation_handle) {
   FrameTreeNode* frame_tree_node =
       static_cast<NavigationHandleImpl*>(navigation_handle)->frame_tree_node();
   RenderFrameDevToolsAgentHost* agent_host = FindAgentHost(frame_tree_node);
   if (agent_host)
     agent_host->AboutToNavigate(navigation_handle);
 }
 
 // static
+void RenderFrameDevToolsAgentHost::OnFailedNavigation(
+    RenderFrameHost* host,
+    const CommonNavigationParams& common_params,
+    const BeginNavigationParams& begin_params,
+    net::Error error_code) {
+  RenderFrameDevToolsAgentHost* agent_host = FindAgentHost(host);
+  if (agent_host)
+    agent_host->OnFailedNavigation(common_params, begin_params, error_code);
+}
+
+// static
 std::unique_ptr<NavigationThrottle>
 RenderFrameDevToolsAgentHost::CreateThrottleForNavigation(
     NavigationHandle* navigation_handle) {
   FrameTreeNode* frame_tree_node =
       static_cast<NavigationHandleImpl*>(navigation_handle)->frame_tree_node();
   while (frame_tree_node && frame_tree_node->parent()) {
     frame_tree_node = frame_tree_node->parent();
   }
   RenderFrameDevToolsAgentHost* agent_host = FindAgentHost(frame_tree_node);
   // Note Page.setControlNavigations is intended to control navigations in the
@@ skipping 318 matching lines @@
 void RenderFrameDevToolsAgentHost::AboutToNavigate(
     NavigationHandle* navigation_handle) {
   if (!IsBrowserSideNavigationEnabled())
     return;
   DCHECK(current_);
   navigating_handles_.insert(navigation_handle);
   current_->Suspend();
   DCHECK(CheckConsistency());
 }
 
+void RenderFrameDevToolsAgentHost::OnFailedNavigation(
+    const CommonNavigationParams& common_params,
+    const BeginNavigationParams& begin_params,
+    net::Error error_code) {
+  DCHECK(IsBrowserSideNavigationEnabled());
+  if (!session())
+    return;
+
+  protocol::NetworkHandler* handler =
+      protocol::NetworkHandler::FromSession(session());
+  if (!handler)
+    return;
+
+  handler->NavigationFailed(common_params, begin_params, error_code);
+}
+
 void RenderFrameDevToolsAgentHost::RenderFrameHostChanged(
     RenderFrameHost* old_host,
     RenderFrameHost* new_host) {
   // CommitPending may destruct |this|.
   scoped_refptr<RenderFrameDevToolsAgentHost> protect(this);
 
   if (session())
     protocol::TargetHandler::FromSession(session())->UpdateFrames();
 
   if (IsBrowserSideNavigationEnabled())
@@ skipping 419 matching lines @@
     RenderFrameHost* host) {
   return (current_ && current_->host() == host) ||
       (pending_ && pending_->host() == host);
 }
 
 bool RenderFrameDevToolsAgentHost::IsChildFrame() {
   return current_ && current_->host()->GetParent();
 }
 
 }  // namespace content