Mojo C++ bindings: make InterfaceEndpointClient observe message loop destruction.

Mojo C++ bindings: make InterfaceEndpointClient observe message loop destruction.

Otherwise, there is no guarantee that we will issue connection error
notification on message loop destruction.

The observer of mojo::Watcher will need to be removed.

BUG=594244, 604762
Committed: https://crrev.com/421e2d6ed8e31318f8e8e653d2d892d9b58815df
Cr-Commit-Position: refs/heads/master@{#420069}

[yzshen1, 2016-09-20 22:21:48]

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

[commit-bot: I haz the power, 2016-09-20 22:22:11]

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

[yzshen1, 2016-09-20 22:32:00]

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

[yzshen1, 2016-09-20 22:32:25]

yzshen@chromium.org changed reviewers:
+ rockot@chromium.org

[yzshen1, 2016-09-20 22:32:26]

Hi, Ken.

Would you please take a look? Thanks!

[commit-bot: I haz the power, 2016-09-20 22:32:56]

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, 2016-09-20 23:37:17]

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

[commit-bot: I haz the power, 2016-09-20 23:37:18]

Dry run: This issue passed the CQ dry run.

[Ken Rockot(use gerrit already), 2016-09-21 14:13:07]

lgtm

[yzshen1, 2016-09-21 15:32:57]

The CQ bit was checked by yzshen@chromium.org

[commit-bot: I haz the power, 2016-09-21 15:33:16]

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, 2016-09-21 15:38:21]

Committed patchset #2 (id:20001)

[commit-bot: I haz the power, 2016-09-21 15:42:03]

Description was changed from

==========
Mojo C++ bindings: make InterfaceEndpointClient observe message loop
destruction.

Otherwise, there is no guarantee that we will issue connection error
notification on message loop destruction.

The observer of mojo::Watcher will need to be removed.

BUG=594244, 604762
==========

to

==========
Mojo C++ bindings: make InterfaceEndpointClient observe message loop
destruction.

Otherwise, there is no guarantee that we will issue connection error
notification on message loop destruction.

The observer of mojo::Watcher will need to be removed.

BUG=594244, 604762

Committed: https://crrev.com/421e2d6ed8e31318f8e8e653d2d892d9b58815df
Cr-Commit-Position: refs/heads/master@{#420069}
==========

[commit-bot: I haz the power, 2016-09-21 15:42:04]

Patchset 2 (id:??) landed as
https://crrev.com/421e2d6ed8e31318f8e8e653d2d892d9b58815df
Cr-Commit-Position: refs/heads/master@{#420069}