Introduce ChannelMojo

ipc/ipc_channel_win.cc

Index: ipc/ipc_channel_win.cc
diff --git a/ipc/ipc_channel_win.cc b/ipc/ipc_channel_win.cc
index 9741dda05a13750f486d21f792f0c4aa6b3b7f65..dc2def2fea7e9f29c7deae405a8acc6ab5b60549 100644
--- a/ipc/ipc_channel_win.cc
+++ b/ipc/ipc_channel_win.cc
@@ -136,6 +136,14 @@ base::ProcessId ChannelWin::GetPeerPID() const {
   return peer_pid_;
 }
 
+base::ProcessId ChannelWin::GetSelfPID() const {
+  return GetCurrentProcessId();
+}
+
+ChannelHandle ChannelWin::GetPipeHandle() const {
+  return ChannelHandle(pipe_);
+}
+
 // static
 bool ChannelWin::IsNamedServerInitialized(
     const std::string& channel_id) {