[Mojo] Add a unit test for connector.js

This CL adds a unit test for connector.js. It shows that we can use the
connector to route messages over IPC channels within the same process.

R=davemoore@chromium.org
BUG=317398

Review URL: https://codereview.chromium.org/85763005

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@237304 0039d316-1c4b-4281-b951-d872f2087c98
Print Preview: Set the print preview's tab title to the same as the initiator's.

BUG=323162
TEST=manual, see bug.

Review URL: https://codereview.chromium.org/86963002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@237305 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 237305
Blink roll 162663:162670

http://build.chromium.org/f/chromium/perf/dashboard/ui/changelog_blink.html?url=/trunk&range=162664:162670&mode=html
TBR=
BUG=

Review URL: https://codereview.chromium.org/87423002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@237306 0039d316-1c4b-4281-b951-d872f2087c98
Update .DEPS.git

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@237307 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 237307