Add a platform policy provider for Android.

BUG=340704
TBR=ben@chromium.org

Review URL: https://codereview.chromium.org/155923002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@249618 0039d316-1c4b-4281-b951-d872f2087c98
[chromedriver] Fix the pattern for matching chromedriver archives.

TBR=craigdh
BUG=

Review URL: https://codereview.chromium.org/157263002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@249619 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 249619