Fix RPHI message queueing during process death

content/public/test/mock_render_process_host.cc

Index: content/public/test/mock_render_process_host.cc
diff --git a/content/public/test/mock_render_process_host.cc b/content/public/test/mock_render_process_host.cc
index d987387740bcb048ec28aa744a7e642f818dfe38..187babe1cf881fc23d2884f99be4362f560aeb62 100644
--- a/content/public/test/mock_render_process_host.cc
+++ b/content/public/test/mock_render_process_host.cc
@@ -101,6 +101,8 @@ bool MockRenderProcessHost::Init() {
   return true;
 }
 
+void MockRenderProcessHost::EnableSendQueue() {}
+
 int MockRenderProcessHost::GetNextRoutingID() {
   return ++prev_routing_id_;
 }