Load font maps in XFA.

Load font maps in XFA.

When XFA is enabled documents using some unicode fonts will render incorrectly
as seen in the example attached to chromium:617490. This CL enables the loading
of the font map files in XFA so we can correctly identify the character sets as
unicode and map the glyphs correctly.

BUG=chromium:617490
Committed: https://pdfium.googlesource.com/pdfium/+/ab5b60edba7e8e80d7ee964d58e58b384fcfe5ee

[dsinclair, 2016-06-23 13:30:44]

Patchset #1 (id:1) has been deleted

[dsinclair, 2016-06-23 13:31:17]

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

[dsinclair, 2016-06-23 13:31:17]

PTAL.

[Lei Zhang, 2016-06-23 15:18:18]

The CQ bit was checked by thestig@chromium.org

[Lei Zhang, 2016-06-23 15:18:18]

lgtm

[commit-bot: I haz the power, 2016-06-23 15:18:25]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/2097523002/20001

[commit-bot: I haz the power, 2016-06-23 15:18:38]

Description was changed from

==========
Load font maps in XFA.

When XFA is enabled documents using some unicode fonts will render incorrectly
as seen in the example attached to chromium:617490. This CL enables the loading
of the font map files in XFA so we can correctly identify the character sets as
unicode and map the glyphs correctly.

BUG=chromium:617490
==========

to

==========
Load font maps in XFA.

When XFA is enabled documents using some unicode fonts will render incorrectly
as seen in the example attached to chromium:617490. This CL enables the loading
of the font map files in XFA so we can correctly identify the character sets as
unicode and map the glyphs correctly.

BUG=chromium:617490

Committed:
https://pdfium.googlesource.com/pdfium/+/ab5b60edba7e8e80d7ee964d58e58b384fcf...
==========

[commit-bot: I haz the power, 2016-06-23 15:18:39]

Committed patchset #1 (id:20001) as
https://pdfium.googlesource.com/pdfium/+/ab5b60edba7e8e80d7ee964d58e58b384fcf...