Add CFWL_ListBox::IsMultiSelection().

Add CFWL_ListBox::IsMultiSelection().

Committed: https://pdfium.googlesource.com/pdfium/+/41ba08e5552c2eccad0c34024dc680feb3f2b251

[Lei Zhang, 2016-11-24 00:36:35]

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

[commit-bot: I haz the power, 2016-11-24 00:36:45]

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

[Lei Zhang, 2016-11-24 00:37:07]

thestig@chromium.org changed reviewers:
+ dsinclair@chromium.org

[commit-bot: I haz the power, 2016-11-24 00:49:14]

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

[commit-bot: I haz the power, 2016-11-24 00:49:15]

Dry run: This issue passed the CQ dry run.

[dsinclair, 2016-11-24 00:49:25]

The CQ bit was checked by dsinclair@chromium.org

[dsinclair, 2016-11-24 00:49:26]

lgtm

[commit-bot: I haz the power, 2016-11-24 00:49:35]

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, 2016-11-24 00:49:50]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1479948565542120, "parent_rev":
"106e9a37050197936731d7f13354757dff21d57e", "commit_rev":
"41ba08e5552c2eccad0c34024dc680feb3f2b251"}

[commit-bot: I haz the power, 2016-11-24 00:49:52]

Description was changed from

==========
Add CFWL_ListBox::IsMultiSelection().
==========

to

==========
Add CFWL_ListBox::IsMultiSelection().

Committed:
https://pdfium.googlesource.com/pdfium/+/41ba08e5552c2eccad0c34024dc680feb3f2...
==========

[commit-bot: I haz the power, 2016-11-24 00:49:53]

Committed patchset #1 (id:1) as
https://pdfium.googlesource.com/pdfium/+/41ba08e5552c2eccad0c34024dc680feb3f2...