Fix race in SkTypeface_FreeType::onCountGlyphs.

Fix race in SkTypeface_FreeType::onCountGlyphs.

Found by TSAN. This makes the operation slightly slower, but it is
not on any user's hot path.

BUG=skia:5238
Committed: https://skia.googlesource.com/skia/+/572f879b6163e1a4fb790a7f63401a6cf0ade1d2

[bungeman-skia, 2016-04-29 21:22:11]

Description was changed from

==========
Fix race in SkTypeface_FreeType::onCountGlyphs.

Found by TSAN. This makes this operation slightly slower, but it is
not on any user's hot path.

BUG=skia:5238
==========

to

==========
Fix race in SkTypeface_FreeType::onCountGlyphs.

Found by TSAN. This makes this operation slightly slower, but it is
not on any user's hot path.

BUG=skia:5238
GOLD_TRYBOT_URL=
https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&is...
==========

[bungeman-skia, 2016-04-29 21:22:26]

The CQ bit was checked by bungeman@google.com to run a CQ dry run

[bungeman-skia, 2016-04-29 21:22:34]

Description was changed from

==========
Fix race in SkTypeface_FreeType::onCountGlyphs.

Found by TSAN. This makes this operation slightly slower, but it is
not on any user's hot path.

BUG=skia:5238
GOLD_TRYBOT_URL=
https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&is...
==========

to

==========
Fix race in SkTypeface_FreeType::onCountGlyphs.

Found by TSAN. This makes this operation slightly slower, but it is
not on any user's hot path.

BUG=skia:5238
==========

[commit-bot: I haz the power, 2016-04-29 21:22:35]

Dry run: CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1940613002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1940613002/1

[bungeman-skia, 2016-04-29 21:23:58]

bungeman@google.com changed reviewers:
+ mtklein@google.com

[bungeman-skia, 2016-04-29 21:24:11]

Description was changed from

==========
Fix race in SkTypeface_FreeType::onCountGlyphs.

Found by TSAN. This makes this operation slightly slower, but it is
not on any user's hot path.

BUG=skia:5238
==========

to

==========
Fix race in SkTypeface_FreeType::onCountGlyphs.

Found by TSAN. This makes the operation slightly slower, but it is
not on any user's hot path.

BUG=skia:5238
==========

[mtklein, 2016-04-29 21:29:15]

lgtm

[commit-bot: I haz the power, 2016-04-29 21:44:10]

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

[commit-bot: I haz the power, 2016-04-29 21:44:11]

Dry run: This issue passed the CQ dry run.

[bungeman-skia, 2016-04-29 22:04:02]

The CQ bit was checked by bungeman@google.com

[commit-bot: I haz the power, 2016-04-29 22:04:07]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1940613002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1940613002/1

[commit-bot: I haz the power, 2016-04-29 22:05:07]

Description was changed from

==========
Fix race in SkTypeface_FreeType::onCountGlyphs.

Found by TSAN. This makes the operation slightly slower, but it is
not on any user's hot path.

BUG=skia:5238
==========

to

==========
Fix race in SkTypeface_FreeType::onCountGlyphs.

Found by TSAN. This makes the operation slightly slower, but it is
not on any user's hot path.

BUG=skia:5238

Committed:
https://skia.googlesource.com/skia/+/572f879b6163e1a4fb790a7f63401a6cf0ade1d2
==========

[commit-bot: I haz the power, 2016-04-29 22:05:07]

Committed patchset #1 (id:1) as
https://skia.googlesource.com/skia/+/572f879b6163e1a4fb790a7f63401a6cf0ade1d2