Dump device policy to log for telemetry.

BUG=263527
TEST=manual

Review URL: https://codereview.chromium.org/104063003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@239412 0039d316-1c4b-4281-b951-d872f2087c98
Introduces the speech recognition UI to app_list.

R=xiyuan@chromium.org
BUG=313904
TEST=manually

Review URL: https://codereview.chromium.org/105773004

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@239413 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 239413