Fix liblouis GN build

Fix liblouis GN build

This fixes the following error in the CrOS gn ozone build
(target_os="chromeos" use_ozone=true):

[2/2854] ACTION //third_party/liblouis:liblouis_tables(//build/toolchain/cros:clang_target)
FAILED: python ../third_party/liblouis/copy_tables.py -D ../third_party/liblouis -D ../third_party/liblouis/src/tables -d resources/chromeos/chromevox/braille/tables -e ../../../../../../third_party/liblouis/cvox-common.cti --depfile gen/third_party/liblouis/liblouis_tables.d ../third_party/liblouis/tables.json
liblouis_list_tables: File not found: ../../../../../../third_party/liblouis/cvox-common.cti

Committed: https://crrev.com/0a40d5fc6506cde613b27dd96e3cbdae965caa38
Cr-Commit-Position: refs/heads/master@{#374577}

[spang, 2016-02-09 18:42:56]

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

[commit-bot: I haz the power, 2016-02-09 18:44:36]

Dry run: CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1682833002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1682833002/1

[spang, 2016-02-09 18:46:20]

The CQ bit was unchecked by spang@chromium.org

[spang, 2016-02-09 18:49:09]

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

[commit-bot: I haz the power, 2016-02-09 18:50:30]

Dry run: CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1682833002/20001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1682833002/20001

[spang, 2016-02-09 19:33:44]

spang@chromium.org changed reviewers:
+ dmazzoni@chromium.org

[commit-bot: I haz the power, 2016-02-09 20:01:45]

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

[commit-bot: I haz the power, 2016-02-09 20:01:45]

Dry run: This issue passed the CQ dry run.

[dmazzoni, 2016-02-09 23:33:26]

lgtm

[spang, 2016-02-10 02:09:21]

The CQ bit was checked by spang@chromium.org

[commit-bot: I haz the power, 2016-02-10 02:10:20]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1682833002/20001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1682833002/20001

[commit-bot: I haz the power, 2016-02-10 02:20:00]

Committed patchset #2 (id:20001)

[commit-bot: I haz the power, 2016-02-10 02:21:37]

Description was changed from

==========
Fix liblouis GN build

This fixes the following error in the CrOS gn ozone build
(target_os="chromeos" use_ozone=true):

[2/2854] ACTION
//third_party/liblouis:liblouis_tables(//build/toolchain/cros:clang_target)
FAILED: python ../third_party/liblouis/copy_tables.py -D ../third_party/liblouis
-D ../third_party/liblouis/src/tables -d
resources/chromeos/chromevox/braille/tables -e
../../../../../../third_party/liblouis/cvox-common.cti --depfile
gen/third_party/liblouis/liblouis_tables.d ../third_party/liblouis/tables.json
liblouis_list_tables: File not found:
../../../../../../third_party/liblouis/cvox-common.cti
==========

to

==========
Fix liblouis GN build

This fixes the following error in the CrOS gn ozone build
(target_os="chromeos" use_ozone=true):

[2/2854] ACTION
//third_party/liblouis:liblouis_tables(//build/toolchain/cros:clang_target)
FAILED: python ../third_party/liblouis/copy_tables.py -D ../third_party/liblouis
-D ../third_party/liblouis/src/tables -d
resources/chromeos/chromevox/braille/tables -e
../../../../../../third_party/liblouis/cvox-common.cti --depfile
gen/third_party/liblouis/liblouis_tables.d ../third_party/liblouis/tables.json
liblouis_list_tables: File not found:
../../../../../../third_party/liblouis/cvox-common.cti

Committed: https://crrev.com/0a40d5fc6506cde613b27dd96e3cbdae965caa38
Cr-Commit-Position: refs/heads/master@{#374577}
==========

[commit-bot: I haz the power, 2016-02-10 02:21:37]

Patchset 2 (id:??) landed as
https://crrev.com/0a40d5fc6506cde613b27dd96e3cbdae965caa38
Cr-Commit-Position: refs/heads/master@{#374577}