Reland "Mojo C++ bindings: support sync methods - part 2"

Reland "Mojo C++ bindings: support sync methods - part 2"

This CL introduces the correct re-entrancy behavior: when a sync call is waiting
for response, allow incoming sync requests on the same thread to re-enter, async
messages are queued until the sync call completes.

The following will be in future CLs:
- Support sync calls with associated interfaces.

The original CL is at https://codereview.chromium.org/1713203002/

BUG=577699
Committed: https://crrev.com/8ef9022a0d352066587791b3e225ca264c688ade
Cr-Commit-Position: refs/heads/master@{#376892}

[yzshen1, 2016-02-22 23:52:06]

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

[yzshen1, 2016-02-22 23:52:07]

Hi, John.

Would you please take a look? (The first patchset is the original CL, so you
could diff against it to see the new code.)

Thanks!

[jam, 2016-02-23 00:20:20]

lgtm

[yzshen1, 2016-02-23 00:27:08]

The CQ bit was checked by yzshen@chromium.org

[commit-bot: I haz the power, 2016-02-23 00:28:35]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1723673002/40001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1723673002/40001

[commit-bot: I haz the power, 2016-02-23 01:22:18]

Committed patchset #3 (id:40001)

[commit-bot: I haz the power, 2016-02-23 01:23:11]

Description was changed from

==========
Reland "Mojo C++ bindings: support sync methods - part 2"


This CL introduces the correct re-entrancy behavior: when a sync call is waiting
for response, allow incoming sync requests on the same thread to re-enter, async
messages are queued until the sync call completes.

The following will be in future CLs:
- Support sync calls with associated interfaces.


The original CL is at https://codereview.chromium.org/1713203002/

BUG=577699
==========

to

==========
Reland "Mojo C++ bindings: support sync methods - part 2"

This CL introduces the correct re-entrancy behavior: when a sync call is waiting
for response, allow incoming sync requests on the same thread to re-enter, async
messages are queued until the sync call completes.

The following will be in future CLs:
- Support sync calls with associated interfaces.

The original CL is at https://codereview.chromium.org/1713203002/

BUG=577699

Committed: https://crrev.com/8ef9022a0d352066587791b3e225ca264c688ade
Cr-Commit-Position: refs/heads/master@{#376892}
==========

[commit-bot: I haz the power, 2016-02-23 01:23:12]

Patchset 3 (id:??) landed as
https://crrev.com/8ef9022a0d352066587791b3e225ca264c688ade
Cr-Commit-Position: refs/heads/master@{#376892}