Automated Commit: Committing new LKGM version 5214.0.0 for chromeos.

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@243808 0039d316-1c4b-4281-b951-d872f2087c98
Added "os" attribute in the component updater update requests.

In order to be compatible with the v2 version of the update protocol and
existing update configuration files, the "os" attribute (and fwiw, "arch")
must be serialized as part of the <request> element.

BUG=332551

Review URL: https://codereview.chromium.org/130543002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@243809 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 243808
Roll swarming_client @ def5b803e9.

$ git log f1632c7d11..def5b803e9 --date=short --format="%ad %ae %s" | sed 's/@chromium\.org//'
2014-01-08 maruel Allow extra argument in run_isolated.py.
2014-01-08 maruel Add date in the temporary name generated by isolate.py run.

BUG=321878

Review URL: https://codereview.chromium.org/130563002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@243810 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 243810