IPC: Add more debug logic (crash tracking)

ipc/ipc_channel_win.h

Index: ipc/ipc_channel_win.h
diff --git a/ipc/ipc_channel_win.h b/ipc/ipc_channel_win.h
index a6f234c72468b66e9f00cf090e6628b205a05c82..bb20950dd7cedc7a02c1924a7298c7fdda9b05b6 100644
--- a/ipc/ipc_channel_win.h
+++ b/ipc/ipc_channel_win.h
@@ -92,6 +92,9 @@ class ChannelWin : public Channel,
   // Determines if we should validate a client's secret on connection.
   bool validate_client_;
 
+  // True if there is a write in progress. TODO(rvargas): remove this.
+  bool writing_;
+
   // Tracks the lifetime of this object, for debugging purposes.
   int32 debug_flags_;