Update the task manager with the debug stub port chosen by nacl.

components/nacl/common/nacl_messages.h

Index: components/nacl/common/nacl_messages.h
diff --git a/components/nacl/common/nacl_messages.h b/components/nacl/common/nacl_messages.h
index 2b1fbba1a19d5d0c3ff9d91f066b91c5e0c189d1..fdf2f34ab0ac21969046a432ee187a7998ec486c 100644
--- a/components/nacl/common/nacl_messages.h
+++ b/components/nacl/common/nacl_messages.h
@@ -95,3 +95,7 @@ IPC_MESSAGE_CONTROL4(NaClProcessHostMsg_PpapiChannelsCreated,
                      IPC::ChannelHandle, /* ppapi_renderer_channel_handle */
                      IPC::ChannelHandle, /* trusted_renderer_channel_handle */
                      IPC::ChannelHandle /* manifest_service_channel_handle */)
+
+// Notify the browser process that the debug stub port has been selected.

[Mark Seaborn, 2014/05/08 15:52:23]

How about "Notify the browser process that the NaCl process has bound the given
TCP port number to use for the GDB debug stub".  (i.e. Avoid passive voice;
mention GDB and TCP for context.)

[bradn, 2014/05/08 17:00:24]

Done.

+IPC_MESSAGE_CONTROL1(NaClProcessHostMsg_DebugStubPortSelected,

[Mark Seaborn, 2014/05/08 15:52:23]

This can be conditionalised on OS_WIN, and go after AttachDebugExceptionHandler.

[bradn, 2014/05/08 17:00:24]

Done.

+                     uint16_t /* debug_stub_port */)