Fix crash in NaClIPCAdapter where incomplete messages incorrectly

chrome/nacl/nacl_ipc_adapter.cc

Index: chrome/nacl/nacl_ipc_adapter.cc
===================================================================
--- chrome/nacl/nacl_ipc_adapter.cc	(revision 157149)
+++ chrome/nacl/nacl_ipc_adapter.cc	(working copy)
@@ -580,6 +580,8 @@
   // When a message is entirely consumed, remove if from the waiting queue.
   if (current->is_consumed())
     locked_data_.to_be_received_.pop();
+  else
+    msg->ndesc_length = 0;

[dmichael (off chromium), 2012/09/19 22:47:48]

Would it be good to either add a comment or move this to Read(), so that it's
obvious why we need to set to 0? Here, it's less obvious that we only send the
descriptors with the last fragment of the message.

[bbudge, 2012/09/19 23:46:09]

Done.

[Mark Seaborn, 2012/09/20 00:28:42]

Did you mean to re-upload?  I just see the original change.

 
   return retval;
 }