Include external touchscreen vid/pid in UMA hardware profile

Previously we looked at including the touchscreen name in the UMA
hardware profile: https://codereview.chromium.org/23619085/.

As that posed a privacy concern, this patch includes the vid/pid
instead.

BUG=248910

Review URL: https://codereview.chromium.org/103893005

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@244210 0039d316-1c4b-4281-b951-d872f2087c98
Add support for Android and iOS policy fetch types to the testserver.

BUG=None

Review URL: https://codereview.chromium.org/132033002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@244211 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 244210
SVN changes up to revision 244211