[ios] Improved GetIndexForOffset performance to large offsets.

[ios] Improved GetIndexForOffset performance to large offsets.

BUG=668318
Committed: https://crrev.com/41087271016f15bcb82356f9ab505efc36af4153
Cr-Commit-Position: refs/heads/master@{#435298}

[Eugene But (OOO till 7-30), 2016-11-24 00:32:03]

The CQ bit was checked by eugenebut@chromium.org to run a CQ dry run

[Eugene But (OOO till 7-30), 2016-11-24 00:32:55]

eugenebut@chromium.org changed reviewers:
+ kkhorimoto@chromium.org, rohitrao@chromium.org

[commit-bot: I haz the power, 2016-11-24 00:33:52]

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, 2016-11-24 02:35:36]

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

[commit-bot: I haz the power, 2016-11-24 02:35:37]

Dry run: Try jobs failed on following builders:
  blimp_linux_dbg on master.tryserver.chromium.linux (JOB_TIMED_OUT, no build
URL)
  chromeos_amd64-generic_chromium_compile_only_ng on
master.tryserver.chromium.linux (JOB_TIMED_OUT, no build URL)
  chromeos_daisy_chromium_compile_only_ng on master.tryserver.chromium.linux
(JOB_TIMED_OUT, no build URL)
  chromium_presubmit on master.tryserver.chromium.linux (JOB_TIMED_OUT, no build
URL)
  linux_chromium_clobber_rel_ng on master.tryserver.chromium.linux
(JOB_TIMED_OUT, no build URL)
  linux_chromium_compile_dbg_ng on master.tryserver.chromium.linux
(JOB_TIMED_OUT, no build URL)
  linux_chromium_rel_ng on master.tryserver.chromium.linux (JOB_TIMED_OUT, no
build URL)

[kkhorimoto, 2016-11-28 19:20:48]

lgtm

[Eugene But (OOO till 7-30), 2016-11-30 16:49:06]

The CQ bit was checked by eugenebut@chromium.org

[commit-bot: I haz the power, 2016-11-30 16:49:35]

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, 2016-11-30 17:01:19]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1480524546642100, "parent_rev":
"29c28bfc64d8fa62ab7af8892ca5d9fc96df70a3", "commit_rev":
"da9482bba3a9d726c841dc48e4502aff81f7a672"}

[commit-bot: I haz the power, 2016-11-30 17:05:07]

Description was changed from

==========
[ios] Improved GetIndexForOffset performance to large offsets.

BUG=668318
==========

to

==========
[ios] Improved GetIndexForOffset performance to large offsets.

BUG=668318

Committed: https://crrev.com/41087271016f15bcb82356f9ab505efc36af4153
Cr-Commit-Position: refs/heads/master@{#435298}
==========

[commit-bot: I haz the power, 2016-11-30 17:05:08]

Patchset 1 (id:??) landed as
https://crrev.com/41087271016f15bcb82356f9ab505efc36af4153
Cr-Commit-Position: refs/heads/master@{#435298}