Add UMA to measure font-display value

Add UMA to measure font-display value

Add WebFont.FontDisplayValue histogram that measures which fallback mode
is specified in font-display @font-face descriptor.

BUG=564447
Committed: https://crrev.com/8507a3e6842ea6e2d90876031757d7b9e864c7c9
Cr-Commit-Position: refs/heads/master@{#372055}

[Kunihiko Sakamoto, 2016-01-28 06:02:04]

Patchset #1 (id:1) has been deleted

[Kunihiko Sakamoto, 2016-01-28 06:10:35]

Description was changed from

==========
Add WebFont.FontDisplayValue UMA histogram

BUG=564447
==========

to

==========
Add UMA to measure font-display value

Add WebFont.FontDisplayValue histogram that measures which fallback mode
is specified in font-display @font-face descriptor.

BUG=564447
==========

[Kunihiko Sakamoto, 2016-01-28 06:12:48]

ksakamoto@chromium.org changed reviewers:
+ isherman@chromium.org, kinuko@chromium.org

[Ilya Sherman, 2016-01-28 06:59:50]

histograms lgtm

[kinuko, 2016-01-28 07:00:37]

lgtm

[Kunihiko Sakamoto, 2016-01-28 07:01:46]

The CQ bit was checked by ksakamoto@chromium.org

[commit-bot: I haz the power, 2016-01-28 07:03:31]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1647823003/20001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1647823003/20001

[commit-bot: I haz the power, 2016-01-28 09:34:50]

Description was changed from

==========
Add UMA to measure font-display value

Add WebFont.FontDisplayValue histogram that measures which fallback mode
is specified in font-display @font-face descriptor.

BUG=564447
==========

to

==========
Add UMA to measure font-display value

Add WebFont.FontDisplayValue histogram that measures which fallback mode
is specified in font-display @font-face descriptor.

BUG=564447
==========

[commit-bot: I haz the power, 2016-01-28 09:34:52]

Committed patchset #1 (id:20001)

[commit-bot: I haz the power, 2016-01-28 09:35:51]

Description was changed from

==========
Add UMA to measure font-display value

Add WebFont.FontDisplayValue histogram that measures which fallback mode
is specified in font-display @font-face descriptor.

BUG=564447
==========

to

==========
Add UMA to measure font-display value

Add WebFont.FontDisplayValue histogram that measures which fallback mode
is specified in font-display @font-face descriptor.

BUG=564447

Committed: https://crrev.com/8507a3e6842ea6e2d90876031757d7b9e864c7c9
Cr-Commit-Position: refs/heads/master@{#372055}
==========

[commit-bot: I haz the power, 2016-01-28 09:35:51]

Patchset 1 (id:??) landed as
https://crrev.com/8507a3e6842ea6e2d90876031757d7b9e864c7c9
Cr-Commit-Position: refs/heads/master@{#372055}