Attempt to fix potential integer overflow in CFX_FaceCache::LoadGlyphPath().

Attempt to fix potential integer overflow in CFX_FaceCache::LoadGlyphPath().

BUG=641333
Committed: https://pdfium.googlesource.com/pdfium/+/21b111fcf71e4e189035f29606ca9d3fdf3ebd92

[Lei Zhang, 2016-08-31 01:43:46]

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

[commit-bot: I haz the power, 2016-08-31 01:43:55]

Dry run: 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, 2016-08-31 01:52:25]

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

[commit-bot: I haz the power, 2016-08-31 01:52:26]

Dry run: Try jobs failed on following builders:
  win_xfa on master.tryserver.client.pdfium (JOB_FAILED,
https://build.chromium.org/p/tryserver.client.pdfium/builders/win_xfa/builds/...)

[Lei Zhang, 2016-08-31 18:17:09]

Description was changed from

==========
Attempt to fix potential integer overflow in CFX_FaceCache::LoadGlyphPath().

BUG=631333
==========

to

==========
Attempt to fix potential integer overflow in CFX_FaceCache::LoadGlyphPath().

BUG=641333
==========

[Lei Zhang, 2016-08-31 18:26:53]

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

[commit-bot: I haz the power, 2016-08-31 18:26:55]

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

[Lei Zhang, 2016-08-31 18:28:30]

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

[commit-bot: I haz the power, 2016-08-31 18:28:34]

Dry run: 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, 2016-08-31 18:57:20]

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

[commit-bot: I haz the power, 2016-08-31 18:57:20]

Dry run: This issue passed the CQ dry run.

[Lei Zhang, 2016-08-31 19:02:31]

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

[Lei Zhang, 2016-08-31 19:02:31]

This does not check for large values of weight/angle/dest_width that can
potentially trigger overflows. It's not immediately obvious if such large values
are possible.

[dsinclair, 2016-08-31 20:23:51]

lgtm

[Lei Zhang, 2016-08-31 20:29:20]

The CQ bit was checked by thestig@chromium.org

[commit-bot: I haz the power, 2016-08-31 20:29:27]

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, 2016-08-31 20:29:41]

Description was changed from

==========
Attempt to fix potential integer overflow in CFX_FaceCache::LoadGlyphPath().

BUG=641333
==========

to

==========
Attempt to fix potential integer overflow in CFX_FaceCache::LoadGlyphPath().

BUG=641333

Committed:
https://pdfium.googlesource.com/pdfium/+/21b111fcf71e4e189035f29606ca9d3fdf3e...
==========

[commit-bot: I haz the power, 2016-08-31 20:29:42]

Committed patchset #3 (id:40001) as
https://pdfium.googlesource.com/pdfium/+/21b111fcf71e4e189035f29606ca9d3fdf3e...