Don't skip column set interval tree search for flow thread offset == 0.

Don't skip column set interval tree search for flow thread offset == 0.

We cannot assume that offset 0 is in the first column set, since the first
column set may be empty.

Committed: https://crrev.com/8384519d410c668ddd779a7bb5fa2ce6289a2f7b
Cr-Commit-Position: refs/heads/master@{#413939}

[mstensho (USE GERRIT), 2016-08-23 19:12:29]

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

[commit-bot: I haz the power, 2016-08-23 19:13:33]

Dry run: CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[commit-bot: I haz the power, 2016-08-23 21:16:11]

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

[commit-bot: I haz the power, 2016-08-23 21:16:12]

Dry run: Try jobs failed on following builders:
  win_chromium_rel_ng on master.tryserver.chromium.win (JOB_FAILED,
http://build.chromium.org/p/tryserver.chromium.win/builders/win_chromium_rel_...)

[mstensho (USE GERRIT), 2016-08-23 21:20:03]

mstensho@opera.com changed reviewers:
+ eae@chromium.org

[eae, 2016-08-23 22:22:23]

LGTM

[eae, 2016-08-23 22:23:18]

The CQ bit was checked by eae@chromium.org

[commit-bot: I haz the power, 2016-08-23 22:24:12]

CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[commit-bot: I haz the power, 2016-08-24 02:08:09]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-08-24 02:09:34]

Description was changed from

==========
Don't skip column set interval tree search for flow thread offset == 0.

We cannot assume that offset 0 is in the first column set, since the first
column set may be empty.
==========

to

==========
Don't skip column set interval tree search for flow thread offset == 0.

We cannot assume that offset 0 is in the first column set, since the first
column set may be empty.

Committed: https://crrev.com/8384519d410c668ddd779a7bb5fa2ce6289a2f7b
Cr-Commit-Position: refs/heads/master@{#413939}
==========

[commit-bot: I haz the power, 2016-08-24 02:09:35]

Patchset 1 (id:??) landed as
https://crrev.com/8384519d410c668ddd779a7bb5fa2ce6289a2f7b
Cr-Commit-Position: refs/heads/master@{#413939}