Send notification when render process has failed to launch.

content/browser/renderer_host/render_process_host_impl.cc

Index: content/browser/renderer_host/render_process_host_impl.cc
diff --git a/content/browser/renderer_host/render_process_host_impl.cc b/content/browser/renderer_host/render_process_host_impl.cc
index fafd773952f52b74baab4d052d8c229f64407e8b..4493e28a39557ff20a5af9874f11caf60dcfc9ce 100644
--- a/content/browser/renderer_host/render_process_host_impl.cc
+++ b/content/browser/renderer_host/render_process_host_impl.cc
@@ -1438,7 +1438,7 @@ bool RenderProcessHostImpl::FastShutdownIfPossible() {
   // died due to fast shutdown versus another cause.
   fast_shutdown_started_ = true;
 
-  ProcessDied(false /* already_dead */);
+  ProcessDied(false /* already_dead */, nullptr);
   return true;
 }
 
@@ -1532,7 +1532,7 @@ void RenderProcessHostImpl::OnChannelConnected(int32 peer_pid) {
 }
 
 void RenderProcessHostImpl::OnChannelError() {
-  ProcessDied(true /* already_dead */);
+  ProcessDied(true /* already_dead */, nullptr);
 }
 
 void RenderProcessHostImpl::OnBadMessageReceived(const IPC::Message& message) {
@@ -2003,7 +2003,8 @@ void RenderProcessHostImpl::RegisterProcessHostForSite(
     map->RegisterProcess(site, process);
 }
 
-void RenderProcessHostImpl::ProcessDied(bool already_dead) {
+void RenderProcessHostImpl::ProcessDied(bool already_dead,
+                                        RendererClosedDetails* known_details) {
   // Our child process has died.  If we didn't expect it, it's a crash.
   // In any case, we need to let everyone know it's gone.
   // The OnChannelError notification can fire multiple times due to nested sync
@@ -2019,12 +2020,15 @@ void RenderProcessHostImpl::ProcessDied(bool already_dead) {
 
   // child_process_launcher_ can be NULL in single process mode or if fast
   // termination happened.
+  base::TerminationStatus status = base::TERMINATION_STATUS_NORMAL_TERMINATION;
   int exit_code = 0;
-  base::TerminationStatus status =
-      child_process_launcher_.get() ?
-      child_process_launcher_->GetChildTerminationStatus(already_dead,
-                                                         &exit_code) :
-      base::TERMINATION_STATUS_NORMAL_TERMINATION;
+  if (known_details) {
+    status = known_details->status;
+    exit_code = known_details->exit_code;
+  } else if (child_process_launcher_.get()) {
+    status = child_process_launcher_->GetChildTerminationStatus(already_dead,
+                                                                &exit_code);
+  }
 
   RendererClosedDetails details(status, exit_code);
   mojo_application_host_->WillDestroySoon();
@@ -2237,6 +2241,12 @@ void RenderProcessHostImpl::OnProcessLaunched() {
 #endif
 }
 
+void RenderProcessHostImpl::OnProcessLaunchFailed() {
+  RendererClosedDetails details { base::TERMINATION_STATUS_PROCESS_WAS_KILLED,
+                                  -1 };
+  ProcessDied(true, &details);
+}
+
 scoped_refptr<AudioRendererHost>
 RenderProcessHostImpl::audio_renderer_host() const {
   return audio_renderer_host_;