Remove IFWL_Grid and other grid classes.

Remove IFWL_Grid and other grid classes.

The IFWL_Grid class wasn't an interface, it was a concrete class. Even as a
concrete class it was never instantiated. The various other CFWL_Grid* class
were also not instantiated.

BUG=pdfium:468
Committed: https://pdfium.googlesource.com/pdfium/+/72851be38d09908efb0d3eca248ee9d3fc655773

[dsinclair, 2016-04-06 20:07:58]

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

[dsinclair, 2016-04-06 20:07:58]

PTAL.

[Tom Sepez, 2016-04-06 20:37:06]

lgtm

[dsinclair, 2016-04-06 20:39:35]

The CQ bit was checked by dsinclair@chromium.org

[commit-bot: I haz the power, 2016-04-06 20:39:49]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1862243002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1862243002/1

[commit-bot: I haz the power, 2016-04-06 20:40:06]

Description was changed from

==========
Remove IFWL_Grid and other grid classes.

The IFWL_Grid class wasn't an interface, it was a concrete class. Even as a
concrete class it was never instantiated. The various other CFWL_Grid* class
were also not instantiated.

BUG=pdfium:468
==========

to

==========
Remove IFWL_Grid and other grid classes.

The IFWL_Grid class wasn't an interface, it was a concrete class. Even as a
concrete class it was never instantiated. The various other CFWL_Grid* class
were also not instantiated.

BUG=pdfium:468

Committed:
https://pdfium.googlesource.com/pdfium/+/72851be38d09908efb0d3eca248ee9d3fc65...
==========

[commit-bot: I haz the power, 2016-04-06 20:40:07]

Committed patchset #1 (id:1) as
https://pdfium.googlesource.com/pdfium/+/72851be38d09908efb0d3eca248ee9d3fc65...