Move notifications to after the process has indeed closed.

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 a95102ffcad20f3a2f8bba467ca59daf86e7576e..51c14ba4203c229d87da0e0251da49d1dd9565af 100644
--- a/content/browser/renderer_host/render_process_host_impl.cc
+++ b/content/browser/renderer_host/render_process_host_impl.cc
@@ -1908,6 +1908,11 @@ void RenderProcessHostImpl::ProcessDied(bool already_dead) {
       base::TERMINATION_STATUS_NORMAL_TERMINATION;
 
   RendererClosedDetails details(GetHandle(), status, exit_code);
+  mojo_application_host_->WillDestroySoon();
+
+  child_process_launcher_.reset();
+  channel_.reset();
+
   within_process_died_observer_ = true;
   NotificationService::current()->Notify(
       NOTIFICATION_RENDERER_PROCESS_CLOSED,
@@ -1918,10 +1923,6 @@ void RenderProcessHostImpl::ProcessDied(bool already_dead) {
                     RenderProcessExited(this, GetHandle(), status, exit_code));
   within_process_died_observer_ = false;
 
-  mojo_application_host_->WillDestroySoon();
-
-  child_process_launcher_.reset();
-  channel_.reset();
   gpu_message_filter_ = NULL;
   message_port_message_filter_ = NULL;
   RemoveUserData(kSessionStorageHolderKey);