Possible workaround to lower bot load.

TBR=iannucci@chromium.org

Review URL: https://chromiumcodereview.appspot.com/17274009

git-svn-id: svn://svn.chromium.org/chrome/trunk/tools/depot_tools@207253 0039d316-1c4b-4281-b951-d872f2087c98

gclient.py

@@ -1695,6 +1695,10 @@ def Parser():
     jobs = 1
   else:
     jobs = max(8, gclient_utils.NumLocalCpus())
+  # cmp: 2013/06/19
+  # Temporary workaround to lower bot-load on SVN server.
+  if os.environ.get('CHROME_HEADLESS') == '1':
+    jobs = 1
   gclientfile_default = os.environ.get('GCLIENT_FILE', '.gclient')
   parser.add_option('-j', '--jobs', default=jobs, type='int',
                     help='Specify how many SCM commands can run in parallel; '