Terminate NaCl broker process when no loader processes are running
BUG=none
TEST=none

Committed: http://src.chromium.org/viewvc/chrome?view=rev&revision=40744
Review URL: http://codereview.chromium.org/669019

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@40941 0039d316-1c4b-4281-b951-d872f2087c98
diff --git a/chrome/common/nacl_messages_internal.h b/chrome/common/nacl_messages_internal.h
index 11dfba7..9eec408 100644
--- a/chrome/common/nacl_messages_internal.h
+++ b/chrome/common/nacl_messages_internal.h
@@ -25,5 +25,9 @@
 
   // Notify the browser process that the broker is ready (sent by the broker)
   IPC_MESSAGE_CONTROL0(NaClProcessMsg_BrokerReady)
+
+  // Notify the broker that all loader processes have been terminated and it
+  // should shutdown.
+  IPC_MESSAGE_CONTROL0(NaClProcessMsg_StopBroker)
 IPC_END_MESSAGES(NaClProcess)