Change " to ' in gyp file for consistency

Change " to ' in gyp file for consistency

Committed: https://pdfium.googlesource.com/pdfium/+/0dbf17813ae6ebd9780062e95841853cb916f40c

[npm, 2016-08-25 21:04:50]

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

[npm, 2016-08-25 21:04:59]

PTAL

[npm, 2016-08-25 21:05:11]

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

[commit-bot: I haz the power, 2016-08-25 21:05:17]

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

[dsinclair, 2016-08-25 21:13:16]

lgtm

[commit-bot: I haz the power, 2016-08-25 21:15:38]

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

[commit-bot: I haz the power, 2016-08-25 21:15:39]

Dry run: This issue passed the CQ dry run.

[npm, 2016-08-25 21:16:36]

The CQ bit was checked by npm@chromium.org

[commit-bot: I haz the power, 2016-08-25 21:16:39]

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, 2016-08-25 21:16:59]

Description was changed from

==========
Change " to ' in gyp file for consistency
==========

to

==========
Change " to ' in gyp file for consistency

Committed:
https://pdfium.googlesource.com/pdfium/+/0dbf17813ae6ebd9780062e95841853cb916...
==========

[commit-bot: I haz the power, 2016-08-25 21:17:00]

Committed patchset #1 (id:1) as
https://pdfium.googlesource.com/pdfium/+/0dbf17813ae6ebd9780062e95841853cb916...