Add unit tests for AppListServiceImpl.

TBR=sail@chromium.org

Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=225992

Review URL: https://codereview.chromium.org/24707002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@226365 0039d316-1c4b-4281-b951-d872f2087c98
Blink roll 158632:158648

http://build.chromium.org/f/chromium/perf/dashboard/ui/changelog_blink.html?url=/trunk&range=158633:158648&mode=html
TBR=
BUG=

Review URL: https://codereview.chromium.org/25587002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@226366 0039d316-1c4b-4281-b951-d872f2087c98
Update .DEPS.git

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@226367 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 226366
SVN changes up to revision 226367