Improved performance of fetching variation parameters in AutomaticProfileResetter.

This is a follow-up to https://codereview.chromium.org/50883003/.

BUG=298036

Review URL: https://codereview.chromium.org/61883005

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@233556 0039d316-1c4b-4281-b951-d872f2087c98
Remove Skia suppressions.

BUG=313226,314499
TBR=robertphillips@google.com

Review URL: https://codereview.chromium.org/61983002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@233557 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 233556
Not ignoring first sign-in state change.
See the bug for details.

BUG=315634
TEST=See the bug

Review URL: https://codereview.chromium.org/62283003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@233558 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 233557
policy: Make UserNetworkConfigurationUpdater a BCKS.

UserNetworkConfigurationUpdater is responsible to push network user policies to different backends (PolicyCertVerifier and ManagedNetworkConfigurationHandler).
ProfilePolicyConnector is responsible to provide policies for the profile's PrefService.

The tight coupling of these two classes is resolved with this commit.

Depends on:
https://codereview.chromium.org/54483004/

BUG=312660
R=dbeam@chromium.org, joaodasilva@chromium.org, willchan@chromium.org

Review URL: https://codereview.chromium.org/53923004

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@233559 0039d316-1c4b-4281-b951-d872f2087c98
Cast:Adding namespace to internal test members

This is a follow-up on previous cl's: adding 
namespace where missing, and some consts while at it.

Review URL: https://codereview.chromium.org/62453003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@233560 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 233560