[NoStatePrefetch] Kill renderer after preload scanning

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 0aa3d6020fd4c9d7784408e14a5807d5ea6e0aa0..183fe971769c8dc04d0f3d71ca7e31689dc6b0af 100644
--- a/content/browser/renderer_host/render_process_host_impl.cc
+++ b/content/browser/renderer_host/render_process_host_impl.cc
@@ -1996,6 +1996,7 @@ bool RenderProcessHostImpl::OnMessageReceived(const IPC::Message& msg) {
       IPC_MESSAGE_HANDLER(ViewHostMsg_UserMetricsRecordAction,
                           OnUserMetricsRecordAction)
       IPC_MESSAGE_HANDLER(ViewHostMsg_Close_ACK, OnCloseACK)
+      IPC_MESSAGE_HANDLER(ViewHostMsg_PrefetchFinished, OnPrefetchFinished)
 #if defined(ENABLE_WEBRTC)
       IPC_MESSAGE_HANDLER(AecDumpMsg_RegisterAecDumpConsumer,
                           OnRegisterAecDumpConsumer)
@@ -2025,6 +2026,11 @@ bool RenderProcessHostImpl::OnMessageReceived(const IPC::Message& msg) {
   return listener->OnMessageReceived(msg);
 }
 
+void RenderProcessHostImpl::OnPrefetchFinished() {
+  FOR_EACH_OBSERVER(RenderProcessHostObserver, observers_,
+                    RenderProcessHostPrefetchFinished(this));
+}
+
 void RenderProcessHostImpl::OnChannelConnected(int32_t peer_pid) {
   channel_connected_ = true;
   if (IsReady()) {