[Sync] IWYU cleanup.

[Sync] IWYU cleanup.

BUG=

Committed: https://crrev.com/ef2d347246bfc3cb768a92a5000883379bd51b88
Cr-Commit-Position: refs/heads/master@{#428559}

[skym, 2016-10-28 22:59:44]

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

[commit-bot: I haz the power, 2016-10-28 23:00:12]

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

[skym, 2016-10-28 23:00:53]

skym@chromium.org changed reviewers:
+ maxbogue@chromium.org

[skym, 2016-10-28 23:00:54]

PTAL, this is just the result of running the command below.

tools/remove_duplicate_includes.py components/sync/ components/sync_bookmarks/
components/sync_sessions/ components/browser_sync/ chrome/browser/sync/

[commit-bot: I haz the power, 2016-10-28 23:16:42]

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

[commit-bot: I haz the power, 2016-10-28 23:16:43]

Dry run: Try jobs failed on following builders:
  android_compile_dbg on master.tryserver.chromium.android (JOB_FAILED,
https://build.chromium.org/p/tryserver.chromium.android/builders/android_comp...)

[maxbogue, 2016-10-28 23:34:53]

lgtm

[maxbogue, 2016-10-28 23:34:58]

The CQ bit was checked by maxbogue@chromium.org

[commit-bot: I haz the power, 2016-10-28 23:35:17]

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, 2016-10-29 00:35:31]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-10-29 00:44:42]

Description was changed from

==========
[Sync] IWYU cleanup.

BUG=
==========

to

==========
[Sync] IWYU cleanup.

BUG=

Committed: https://crrev.com/ef2d347246bfc3cb768a92a5000883379bd51b88
Cr-Commit-Position: refs/heads/master@{#428559}
==========

[commit-bot: I haz the power, 2016-10-29 00:44:43]

Patchset 1 (id:??) landed as
https://crrev.com/ef2d347246bfc3cb768a92a5000883379bd51b88
Cr-Commit-Position: refs/heads/master@{#428559}

[phoglund_chromium, 2016-10-31 10:27:25]

A revert of this CL (patchset #1 id:1) has been created in
https://codereview.chromium.org/2466463002/ by phoglund@chromium.org.

The reason for reverting is: Likely made sync tests flaky. See
https://bugs.chromium.org/p/chromium/issues/detail?id=660655 for more details.

BUG=660655.