Launches a privileged utility process.

content/common/utility_messages.h

Index: content/common/utility_messages.h
diff --git a/content/common/utility_messages.h b/content/common/utility_messages.h
index 1e5c68bfea3356eb466df21535a54ad8b287b655..4f5182e7faaf84c46825d6c2389a3743b41021a9 100644
--- a/content/common/utility_messages.h
+++ b/content/common/utility_messages.h
@@ -27,6 +27,9 @@ IPC_MESSAGE_CONTROL0(UtilityMsg_BatchMode_Started)
 // Tells the utility process that it can shutdown.
 IPC_MESSAGE_CONTROL0(UtilityMsg_BatchMode_Finished)
 
+// Tells the utility process that it can shutdown.
+IPC_MESSAGE_CONTROL0(UtilityMsg_EffectiveUser)
+
 #if defined(OS_POSIX)
 // Tells the utility process to load each plugin in the order specified by the
 // vector. It will respond after each load with the WebPluginInfo.
@@ -50,3 +53,7 @@ IPC_SYNC_MESSAGE_CONTROL2_0(UtilityHostMsg_LoadedPlugin,
                             uint32_t /* index in the vector */,
                             content::WebPluginInfo /* plugin info */)
 #endif  // OS_POSIX
+  //
+// Tells the utility process that it can shutdown.
+IPC_MESSAGE_CONTROL1(UtilityHostMsg_EffectiveUser,
+                     int /* user id. */)