Fix headless_browsertests failures with PlzNavigate.

content/browser/frame_host/render_frame_host_impl.cc

 // Copyright 2013 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/render_frame_host_impl.h"
 
 #include <algorithm>
 #include <utility>
 
 #include "base/bind.h"
@@ skipping 2696 matching lines @@
   // the URL bar correctly displays privileged URLs instead of filtering them.
   UpdatePermissionsForNavigation(common_params, request_params);
 
   // Get back to a clean state, in case a new navigation started without
   // completing an unload handler.
   ResetWaitingState();
 
   Send(new FrameMsg_FailedNavigation(routing_id_, common_params, request_params,
                                      has_stale_copy_in_cache, error_code));
 
+  RenderFrameDevToolsAgentHost::OnFailedNavigation(
+      this, static_cast<net::Error>(error_code));
+
   // An error page is expected to commit, hence why is_loading_ is set to true.
   is_loading_ = true;
   frame_tree_node_->ResetNavigationRequest(true);
 }
 
 void RenderFrameHostImpl::SetUpMojoIfNeeded() {
   if (interface_registry_.get())
     return;
 
   interface_registry_ = base::MakeUnique<service_manager::InterfaceRegistry>(
@@ skipping 720 matching lines @@
   // There is no pending NavigationEntry in these cases, so pass 0 as the
   // pending_nav_entry_id. If the previous handle was a prematurely aborted
   // navigation loaded via LoadDataWithBaseURL, propagate the entry id.
   return NavigationHandleImpl::Create(
       params.url, params.redirects, frame_tree_node_, is_renderer_initiated,
       params.was_within_same_page, base::TimeTicks::Now(),
       entry_id_for_data_nav, false);  // started_from_context_menu
 }
 
 }  // namespace content