Remove the socket_count parameter from NaCl Launch IPC messages.

Remove the socket_count parameter from NaCl Launch IPC messages.

After some refactoring, the socket_count is now hardcoded to 1,
so we can assume there is only a single socket and avoid using
a vector as well.

BUG= http://code.google.com/p/nativeclient/issues/detail?id=3241

Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=175821

[Mark Seaborn, 2013-01-08 00:40:57]

I've set BUG=http://code.google.com/p/nativeclient/issues/detail?id=3241 -- it's
appropriate, since this cleanup was motivated by that issue.  It's better to
reference a bug than put "BUG=none".

https://codereview.chromium.org/11787029/diff/1/chrome/browser/nacl_host/nacl...
File chrome/browser/nacl_host/nacl_process_host.cc (right):

https://codereview.chromium.org/11787029/diff/1/chrome/browser/nacl_host/nacl...
chrome/browser/nacl_host/nacl_process_host.cc:131: std::vector<nacl::Handle>
sockets_for_sel_ldr;
You can simplify sockets_for_sel_ldr too.  It's only appended to in the same
place as sockets_for_renderer, AFAICS.

[jvoung (off chromium), 2013-01-08 19:35:38]

https://codereview.chromium.org/11787029/diff/1/chrome/browser/nacl_host/nacl...
File chrome/browser/nacl_host/nacl_process_host.cc (right):

https://codereview.chromium.org/11787029/diff/1/chrome/browser/nacl_host/nacl...
chrome/browser/nacl_host/nacl_process_host.cc:131: std::vector<nacl::Handle>
sockets_for_sel_ldr;
On 2013/01/08 00:40:57, Mark Seaborn wrote:
> You can simplify sockets_for_sel_ldr too.  It's only appended to in the same
> place as sockets_for_renderer, AFAICS.

Done.

[Mark Seaborn, 2013-01-08 19:38:39]

LGTM