Convert the re2 GYP targets to be generated by GN.

BUG=288991
R=bradnelson@google.com

Review URL: https://codereview.chromium.org/68853015

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@245254 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 245254
drive: Return NOT_FOUND from FakeDriveService after the entry gets deleted

The real Drive server returns NOT_FOUND for deleted entries.

BUG=None
TEST=unit_tests

Review URL: https://codereview.chromium.org/139153003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@245255 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 245255
ash-enable-system-sounds is exposed to about:flags.

BUG=322820
TEST=manual tests on Daisy

Review URL: https://codereview.chromium.org/139323002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@245256 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 245256