Increase the number of msvs shards to ensure that official builds  continue to link in Windows. Review URL: https://codereview.chromium.org/14417015
Increase the number of msvs shards to ensure that official builds 
continue to link in Windows.
Review URL: https://codereview.chromium.org/14417015

git-svn-id: bf5cd6ccde378db821296732a091cfbcf5285fbd@149282 bbb929c8-8fbe-4397-9dbb-9b2b20218538

axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk