Docserver: Work around cron OOM/timeout issues by not requiring that instances
serve cached content.

BUG=345361
R=yoz@chromium.org, mangini@chromium.org
TBR=yoz@chromium.org

Review URL: https://codereview.chromium.org/173893004

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@252387 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 252387
Enable more-than-65536-indices.html on win amd gpu bot

BUG=
TEST=win gpu amd bot
TBR=kbr@chromium.org

Review URL: https://codereview.chromium.org/174393002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@252388 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 252388