Worker: Add WorkerOrWorkletGlobalScope::thread() interface

Worker: Add WorkerOrWorkletGlobalScope::thread() interface

This is a preparation for https://codereview.chromium.org/2456733002/

Before this CL, thread() is provided by WorkerGlobalScope and
ThreadedWorkletGlobalScope. This is not convenient when we handle them as
WorkerOrWorkletGlobalScope, a base class of both the global scopes, and want to
access WorkerThread from that. In the case, we need to cast it to
WorkerGlobalScope or ThreadedWorkletGlobalScope, and then call its thread().

After this CL, we can directly call WorkerOrWorkletGlobalScope::thread().

Note that MainThreadWorkletGlobalScope is also a sub-class of
WorkerOrWorkletGlobalScope, but it's not associated with WorkerThread, so
MainThreadWorkletGlobalScope::thread() always returns nullptr.

BUG=646559
Committed: https://crrev.com/55f5c0ef44161653b49a4f2f3a8a0c9fd74ba61e
Cr-Commit-Position: refs/heads/master@{#430532}

[nhiroki, 2016-11-08 03:53:18]

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

[commit-bot: I haz the power, 2016-11-08 03:53:47]

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

[nhiroki, 2016-11-08 04:09:01]

Description was changed from

==========
Worker: Add WorkerOrWorkletGlobalScope::thread() interface

This is a preparation for https://codereview.chromium.org/2456733002/

Before this CL, thread() is provided by WorkerGlobalScope and
ThreadedWorkletGlobalScope. This is inconvenient when we handle those global
scopes as WorkerOrWorkletGlobalScope that is a base class of them.

Note that MainThreadWorklet is also a sub-class of WorkerOrWorkletGlobalScope,
but it's not associated with WorkerThread, so MainThreadWorklet::thread()
returns nullptr.

BUG=646559
==========

to

==========
Worker: Add WorkerOrWorkletGlobalScope::thread() interface

This is a preparation for https://codereview.chromium.org/2456733002/

Before this CL, thread() is provided by WorkerGlobalScope and
ThreadedWorkletGlobalScope. This is not convenient when we handle them as
WorkerOrWorkletGlobalScope, a base class of the global scopes, and want to
access WorkerThread from that. In the case, we need to cast it to
WorkerGlobalScope or ThreadedWorkletGlobalScope, and then call its thread().

After this CL, we can directly call WorkerOrWorkletGlobalScope::thread().

Note that MainThreadWorkletGlobalScope is also a sub-class of
WorkerOrWorkletGlobalScope, but it's not associated with WorkerThread, so
MainThreadWorkletGlobalScope::thread() always returns nullptr.

BUG=646559
==========

[nhiroki, 2016-11-08 04:12:48]

Description was changed from

==========
Worker: Add WorkerOrWorkletGlobalScope::thread() interface

This is a preparation for https://codereview.chromium.org/2456733002/

Before this CL, thread() is provided by WorkerGlobalScope and
ThreadedWorkletGlobalScope. This is not convenient when we handle them as
WorkerOrWorkletGlobalScope, a base class of the global scopes, and want to
access WorkerThread from that. In the case, we need to cast it to
WorkerGlobalScope or ThreadedWorkletGlobalScope, and then call its thread().

After this CL, we can directly call WorkerOrWorkletGlobalScope::thread().

Note that MainThreadWorkletGlobalScope is also a sub-class of
WorkerOrWorkletGlobalScope, but it's not associated with WorkerThread, so
MainThreadWorkletGlobalScope::thread() always returns nullptr.

BUG=646559
==========

to

==========
Worker: Add WorkerOrWorkletGlobalScope::thread() interface

This is a preparation for https://codereview.chromium.org/2456733002/

Before this CL, thread() is provided by WorkerGlobalScope and
ThreadedWorkletGlobalScope. This is not convenient when we handle them as
WorkerOrWorkletGlobalScope, a base class of both the global scopes, and want to
access WorkerThread from that. In the case, we need to cast it to
WorkerGlobalScope or ThreadedWorkletGlobalScope, and then call its thread().

After this CL, we can directly call WorkerOrWorkletGlobalScope::thread().

Note that MainThreadWorkletGlobalScope is also a sub-class of
WorkerOrWorkletGlobalScope, but it's not associated with WorkerThread, so
MainThreadWorkletGlobalScope::thread() always returns nullptr.

BUG=646559
==========

[nhiroki, 2016-11-08 04:12:56]

Patchset #1 (id:1) has been deleted

[nhiroki, 2016-11-08 04:13:07]

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

[commit-bot: I haz the power, 2016-11-08 04:13:22]

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

[nhiroki, 2016-11-08 05:21:27]

nhiroki@chromium.org changed reviewers:
+ haraken@chromium.org

[nhiroki, 2016-11-08 05:21:28]

PTAL, thanks.

[haraken, 2016-11-08 05:25:27]

LGTM

[nhiroki, 2016-11-08 05:41:08]

The CQ bit was unchecked by nhiroki@chromium.org

[nhiroki, 2016-11-08 05:41:14]

The CQ bit was checked by nhiroki@chromium.org

[commit-bot: I haz the power, 2016-11-08 05:41:37]

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, 2016-11-08 06:03:28]

Committed patchset #1 (id:20001)

[commit-bot: I haz the power, 2016-11-08 06:06:03]

Description was changed from

==========
Worker: Add WorkerOrWorkletGlobalScope::thread() interface

This is a preparation for https://codereview.chromium.org/2456733002/

Before this CL, thread() is provided by WorkerGlobalScope and
ThreadedWorkletGlobalScope. This is not convenient when we handle them as
WorkerOrWorkletGlobalScope, a base class of both the global scopes, and want to
access WorkerThread from that. In the case, we need to cast it to
WorkerGlobalScope or ThreadedWorkletGlobalScope, and then call its thread().

After this CL, we can directly call WorkerOrWorkletGlobalScope::thread().

Note that MainThreadWorkletGlobalScope is also a sub-class of
WorkerOrWorkletGlobalScope, but it's not associated with WorkerThread, so
MainThreadWorkletGlobalScope::thread() always returns nullptr.

BUG=646559
==========

to

==========
Worker: Add WorkerOrWorkletGlobalScope::thread() interface

This is a preparation for https://codereview.chromium.org/2456733002/

Before this CL, thread() is provided by WorkerGlobalScope and
ThreadedWorkletGlobalScope. This is not convenient when we handle them as
WorkerOrWorkletGlobalScope, a base class of both the global scopes, and want to
access WorkerThread from that. In the case, we need to cast it to
WorkerGlobalScope or ThreadedWorkletGlobalScope, and then call its thread().

After this CL, we can directly call WorkerOrWorkletGlobalScope::thread().

Note that MainThreadWorkletGlobalScope is also a sub-class of
WorkerOrWorkletGlobalScope, but it's not associated with WorkerThread, so
MainThreadWorkletGlobalScope::thread() always returns nullptr.

BUG=646559

Committed: https://crrev.com/55f5c0ef44161653b49a4f2f3a8a0c9fd74ba61e
Cr-Commit-Position: refs/heads/master@{#430532}
==========

[commit-bot: I haz the power, 2016-11-08 06:06:05]

Patchset 1 (id:??) landed as
https://crrev.com/55f5c0ef44161653b49a4f2f3a8a0c9fd74ba61e
Cr-Commit-Position: refs/heads/master@{#430532}