PlzNavigate: Support renderer-side failed navigations

content/renderer/render_frame_impl.cc

Index: content/renderer/render_frame_impl.cc
diff --git a/content/renderer/render_frame_impl.cc b/content/renderer/render_frame_impl.cc
index ccf721b424fc7f0f44cfdff8a2071c4ac10c213e..694b0048a59f04a3637a228a7ae552208ace50d7 100644
--- a/content/renderer/render_frame_impl.cc
+++ b/content/renderer/render_frame_impl.cc
@@ -4865,18 +4865,12 @@ void RenderFrameImpl::OnFailedNavigation(
   pending_navigation_params_.reset(new NavigationParams(
       common_params, StartNavigationParams(), request_params));
 
-  // Inform the browser of the start of the provisional load. This is needed so
-  // that the load is properly tracked by the WebNavigation API.
-  Send(new FrameHostMsg_DidStartProvisionalLoad(
-      routing_id_, common_params.url, common_params.navigation_start));
-
   // Send the provisional load failure.
   blink::WebURLError error =
       CreateWebURLError(common_params.url, has_stale_copy_in_cache, error_code);
   WebURLRequest failed_request = CreateURLRequestForNavigation(
       common_params, std::unique_ptr<StreamOverrideParameters>(),
       frame_->isViewSourceModeEnabled());
-  SendFailedProvisionalLoad(failed_request, error, frame_);
 
   if (!ShouldDisplayErrorPageForFailedLoad(error_code, common_params.url)) {
     // The browser expects this frame to be loading an error page. Inform it