Update font fallbacks for Win10

Update font fallbacks for Win10

The list of default-available fonts has changed on Windows 10, so for
infrequently used fonts, we fail and render boxes. Update the fallbacks
based on: https://msdn.microsoft.com/library/windows/apps/hh700394.aspx

Languages that are fixed include: Sinhala, Lao, Tigrinya, Malayalam,
Khmer, Amharic, Eritrean, Oriya, and maybe a few more related ones.

TEST=On Win10 visit pages like http://www.omniglot.com/language/phrases/welcome.htm and http://www.omniglot.com/language/phrases/hello.htm and see there's no "missing character" boxes.

R=eae@chromium.org
BUG=516209
Committed: https://src.chromium.org/viewvc/blink?view=rev&revision=200582

[scottmg, 2015-08-14 04:10:09]

Patchset #2 (id:20001) has been deleted

[eae, 2015-08-14 14:48:03]

LGTM

Thanks Scott!

[scottmg, 2015-08-14 19:17:11]

The CQ bit was checked by scottmg@chromium.org

[scottmg, 2015-08-14 19:17:11]

The patchset sent to the CQ was uploaded after l-g-t-m from eae@chromium.org
Link to the patchset: https://codereview.chromium.org/1289733003/#ps60001
(title: ".")

[commit-bot: I haz the power, 2015-08-14 19:17:29]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1289733003/60001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1289733003/60001

[scottmg, 2015-08-14 19:17:57]

Patchset #2 (id:40001) has been deleted

[scottmg, 2015-08-14 19:18:25]

I moved the CJK additions to the end of their respective lists.

[eae, 2015-08-14 19:41:03]

Still LGTM

[commit-bot: I haz the power, 2015-08-14 21:51:21]

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

[commit-bot: I haz the power, 2015-08-14 21:51:22]

Try jobs failed on following builders:
  win_chromium_rel_ng on tryserver.chromium.win (JOB_FAILED,
http://build.chromium.org/p/tryserver.chromium.win/builders/win_chromium_rel_...)

[scottmg, 2015-08-14 21:58:12]

The CQ bit was checked by scottmg@chromium.org

[commit-bot: I haz the power, 2015-08-14 21:58:42]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1289733003/60001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1289733003/60001

[commit-bot: I haz the power, 2015-08-15 00:19:24]

Committed patchset #2 (id:60001) as
https://src.chromium.org/viewvc/blink?view=rev&revision=200582