Use FileDescriptorWatcher in NativeMessageProcessHost.

Use FileDescriptorWatcher in NativeMessageProcessHost.

This allows NativeMessageProcessHost to be used from any thread that
instantiates a FileDescriptorWatcher (not just threads that run
a MessageLoopForIO). This will facilitate the migration of
BrowserThreads to base/task_scheduler.

BUG=645114
Committed: https://crrev.com/8be7e5011d52cc9f1dbd55359e4bf417a73a1f89
Cr-Commit-Position: refs/heads/master@{#422906}

[fdoray, 2016-10-03 18:45:11]

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

[commit-bot: I haz the power, 2016-10-03 18:45:59]

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, 2016-10-03 19:14:24]

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

[commit-bot: I haz the power, 2016-10-03 19:14:25]

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

[fdoray, 2016-10-03 20:29:15]

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

[commit-bot: I haz the power, 2016-10-03 20:29:46]

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, 2016-10-03 21:26:35]

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

[commit-bot: I haz the power, 2016-10-03 21:26:35]

Dry run: This issue passed the CQ dry run.

[fdoray, 2016-10-03 21:28:12]

fdoray@chromium.org changed reviewers:
+ sergeyu@chromium.org

[fdoray, 2016-10-03 21:28:12]

PTAL

[Sergey Ulanov, 2016-10-04 20:15:18]

lgtm

[fdoray, 2016-10-04 20:17:29]

The CQ bit was checked by fdoray@chromium.org

[commit-bot: I haz the power, 2016-10-04 20:18:36]

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, 2016-10-04 20:26:10]

Committed patchset #2 (id:20001)

[commit-bot: I haz the power, 2016-10-04 20:29:02]

Description was changed from

==========
Use FileDescriptorWatcher in NativeMessageProcessHost.

This allows NativeMessageProcessHost to be used from any thread that
instantiates a FileDescriptorWatcher (not just threads that run
a MessageLoopForIO). This will facilitate the migration of
BrowserThreads to base/task_scheduler.

BUG=645114
==========

to

==========
Use FileDescriptorWatcher in NativeMessageProcessHost.

This allows NativeMessageProcessHost to be used from any thread that
instantiates a FileDescriptorWatcher (not just threads that run
a MessageLoopForIO). This will facilitate the migration of
BrowserThreads to base/task_scheduler.

BUG=645114

Committed: https://crrev.com/8be7e5011d52cc9f1dbd55359e4bf417a73a1f89
Cr-Commit-Position: refs/heads/master@{#422906}
==========

[commit-bot: I haz the power, 2016-10-04 20:29:03]

Patchset 2 (id:??) landed as
https://crrev.com/8be7e5011d52cc9f1dbd55359e4bf417a73a1f89
Cr-Commit-Position: refs/heads/master@{#422906}