Make IPC channels track their peer process ID

ipc/ipc_channel_posix.h

Index: ipc/ipc_channel_posix.h
===================================================================
--- ipc/ipc_channel_posix.h	(revision 130443)
+++ ipc/ipc_channel_posix.h	(working copy)
@@ -65,6 +65,7 @@
   bool HasAcceptedConnection() const;
   bool GetClientEuid(uid_t* client_euid) const;
   void ResetToAcceptingConnectionState();
+  base::ProcessId peer_pid() const { return peer_pid_; }

[Tom Sepez, 2012/04/04 19:07:07]

Include what you use.

[jschuh, 2012/04/04 21:05:13]

Done.

   static bool IsNamedServerInitialized(const std::string& channel_id);
 #if defined(OS_LINUX)
   static void SetGlobalPid(int pid);
@@ -113,6 +114,8 @@
 
   Mode mode_;
 
+  base::ProcessId peer_pid_;
+
   // After accepting one client connection on our server socket we want to
   // stop listening.
   MessageLoopForIO::FileDescriptorWatcher server_listen_connection_watcher_;