Re-enable warning 4701 for GN build and some cleanup

Re-enable warning 4701 for GN build and some cleanup

Clean up three 4701 warnings (use potientially uninitialized variable)
which are the only ones left;
Re-enable warning 4701 for GN build;
Remove an unused data structure;

BUG=pdfium:29
Committed: https://pdfium.googlesource.com/pdfium/+/65ffa4a4ee599194118a0ddf3c26fc3674120b4a

[Wei Li, 2016-04-13 17:04:14]

weili@chromium.org changed reviewers:
+ tsepez@chromium.org

[Wei Li, 2016-04-13 17:04:14]

PTAL, thanks

[Tom Sepez, 2016-04-13 17:12:01]

The CQ bit was checked by tsepez@chromium.org

[Tom Sepez, 2016-04-13 17:12:01]

lgtm

[commit-bot: I haz the power, 2016-04-13 17:12:11]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1885093002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1885093002/1

[commit-bot: I haz the power, 2016-04-13 17:26:55]

Description was changed from

==========
Re-enable warning 4701 for GN build and some cleanup

Clean up three 4701 warnings (use potientially uninitialized variable)
which are the only ones left;
Re-enable warning 4701 for GN build;
Remove an unused data structure;

BUG=pdfium:29
==========

to

==========
Re-enable warning 4701 for GN build and some cleanup

Clean up three 4701 warnings (use potientially uninitialized variable)
which are the only ones left;
Re-enable warning 4701 for GN build;
Remove an unused data structure;

BUG=pdfium:29

Committed:
https://pdfium.googlesource.com/pdfium/+/65ffa4a4ee599194118a0ddf3c26fc367412...
==========

[commit-bot: I haz the power, 2016-04-13 17:26:56]

Committed patchset #1 (id:1) as
https://pdfium.googlesource.com/pdfium/+/65ffa4a4ee599194118a0ddf3c26fc367412...