arc-bridge: Add arc_mojo_bindings dependency to arc_test_support

arc-bridge: Add arc_mojo_bindings dependency to arc_test_support

The revert+reland cycle triggered a build break due to an underspecified
dependency. This fixes the issue.

TBR=elijahtaylor
BUG=569446

[Pete Williamson, 2015-12-21 23:26:16]

petewil@chromium.org changed reviewers:
+ petewil@chromium.org

[Pete Williamson, 2015-12-21 23:26:16]

lgtm

[lhc(google), 2015-12-21 23:26:20]

Description was changed from

==========
arc-bridge: Add arc_mojo_bindings dependency to arc_test_support

The revert+reland cycle triggered a build break due to an underspecified
dependency. This fixes the issue.

BUG=569446
==========

to

==========
arc-bridge: Add arc_mojo_bindings dependency to arc_test_support

The revert+reland cycle triggered a build break due to an underspecified
dependency. This fixes the issue.

TBR=elijahtaylor
BUG=569446
==========

[lhc(google), 2015-12-21 23:26:20]

lhchavez@google.com changed reviewers:
- petewil@chromium.org

[lhc(google), 2015-12-21 23:26:46]

The CQ bit was checked by lhchavez@google.com

[commit-bot: I haz the power, 2015-12-21 23:27:32]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1542833002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1542833002/1

[lhc(google), 2015-12-21 23:31:52]

The CQ bit was unchecked by lhchavez@google.com