Add tests for file_manager::ZipFileCreator.

Checked that reverting r239144 (fix for a recent regression) makes the tests fail.

BUG=323386

Review URL: https://codereview.chromium.org/116073002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@240990 0039d316-1c4b-4281-b951-d872f2087c98
Load JSON in non-strict mode at the policy_testserver.

This allows having newlines in strings in the JSON configuration file,
making it much easier to embed ONC configuration blobs.

BUG=None

Review URL: https://codereview.chromium.org/116203003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@240991 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 240991
Blink roll 163896:163968

http://build.chromium.org/f/chromium/perf/dashboard/ui/changelog_blink.html?url=/trunk&range=163897:163968&mode=html
TBR=
BUG=

Review URL: https://codereview.chromium.org/116503002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@240994 0039d316-1c4b-4281-b951-d872f2087c98
Update .DEPS.git

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@240995 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 240995