Remove unused constant kInvalidFrameRoutingID

Remove unused constant kInvalidFrameRoutingID

All use of kInvalidFrameRoutingID was removed in
https://codereview.chromium.org/1138543002 but for the constant.

Committed: https://crrev.com/443a79161db949aa4049aef6baa6dffcfdd32567
Cr-Commit-Position: refs/heads/master@{#367287}

[davve, 2015-12-18 09:34:02]

The CQ bit was checked by davve@opera.com to run a CQ dry run

[commit-bot: I haz the power, 2015-12-18 09:34:40]

Dry run: CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1532323002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1532323002/1

[davve, 2015-12-18 09:35:06]

davve@opera.com changed reviewers:
+ japhet@chromium.org

[davve, 2015-12-18 09:35:07]

Something I just happened to stumble upon. PTAL at your leisure.

[commit-bot: I haz the power, 2015-12-18 10:42:11]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2015-12-18 10:42:12]

Dry run: This issue passed the CQ dry run.

[Nate Chapin, 2015-12-30 23:14:27]

lgtm, but I'm not an OWNER

[Avi (use Gerrit), 2015-12-30 23:20:30]

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

[Avi (use Gerrit), 2015-12-30 23:20:30]

lgtm

I am an owner.

[davve, 2016-01-03 10:32:24]

The CQ bit was checked by davve@opera.com

[commit-bot: I haz the power, 2016-01-03 10:32:28]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1532323002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1532323002/1

[commit-bot: I haz the power, 2016-01-03 13:24:47]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-01-03 13:25:05]

Failed to apply the patch.

[commit-bot: I haz the power, 2016-01-03 13:26:02]

Description was changed from

==========
Remove unused constant kInvalidFrameRoutingID

All use of kInvalidFrameRoutingID was removed in
https://codereview.chromium.org/1138543002 but for the constant.
==========

to

==========
Remove unused constant kInvalidFrameRoutingID

All use of kInvalidFrameRoutingID was removed in
https://codereview.chromium.org/1138543002 but for the constant.

Committed: https://crrev.com/443a79161db949aa4049aef6baa6dffcfdd32567
Cr-Commit-Position: refs/heads/master@{#367287}
==========

[commit-bot: I haz the power, 2016-01-03 13:26:02]

Patchset 1 (id:??) landed as
https://crrev.com/443a79161db949aa4049aef6baa6dffcfdd32567
Cr-Commit-Position: refs/heads/master@{#367287}