From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: deepak1556 <hop2deep@gmail.com>
Date: Fri, 5 Apr 2019 12:49:24 +0530
Subject: Define ipc identifier for legacy Electron ipc messages

Electron ipc messages used to piggy back on ShellMsgStart for ipc
identifier. But its not available after
https://chromium-review.googlesource.com/c/chromium/src/+/1525181.
This patch can be removed once legacy ipc messages are no longer
used.

diff --git a/ipc/ipc_message_start.h b/ipc/ipc_message_start.h
index 4d83cdf93aef66d3479c9a325e8241592d85359e..a03af8a4b9d370ae849d4fe61c805ecb525fe394 100644
--- a/ipc/ipc_message_start.h
+++ b/ipc/ipc_message_start.h
@@ -69,6 +69,7 @@ enum IPCMessageStart {
   ExtensionWorkerMsgStart,
   SubresourceFilterMsgStart,
   ChromeAppsMsgStart,
+  ElectronMsgStart,
   LastIPCMsgStart  // Must come last.
 };