Add a Content API around BrowserChildProcessHost, similar to what was done with ChildProcessHost....

chrome/service/service_utility_process_host.cc

Index: chrome/service/service_utility_process_host.cc
===================================================================
--- chrome/service/service_utility_process_host.cc	(revision 118420)
+++ chrome/service/service_utility_process_host.cc	(working copy)
@@ -152,10 +152,6 @@
   return ChildProcessHost::GetChildPath(flags);
 }
 
-bool ServiceUtilityProcessHost::CanShutdown() {
-  return true;
-}
-
 void ServiceUtilityProcessHost::OnChildDisconnected() {
   if (waiting_for_reply_) {
     // If we are yet to receive a reply then notify the client that the
@@ -166,9 +162,6 @@
   delete this;
 }
 
-void ServiceUtilityProcessHost::ShutdownStarted() {
-}
-
 bool ServiceUtilityProcessHost::OnMessageReceived(const IPC::Message& message) {
   bool handled = true;
   IPC_BEGIN_MESSAGE_MAP(ServiceUtilityProcessHost, message)