Don't use DF text during animations

Don't use DF text during animations

Previously, we enabled distance-field text during animations in
order to improve GPU raster performance. Now that GPU raster
handles animations the same way as SW - only rastering at specific
scales and interpolating, this optimization isn't necessary.

In certain cases, the optimization causes visual differences
between non-animating and animating content, so removing this
improves our correctness as well.

R=ajuma@chromium.org
BUG=668723
CQ_INCLUDE_TRYBOTS=master.tryserver.blink:linux_trusty_blink_rel

Review-Url: https://codereview.chromium.org/2605273003
Cr-Commit-Position: refs/heads/master@{#441204}
(cherry picked from commit b04a4a62bc244a238e63c6862be0ed6dfe84a837)

Review-Url: https://codereview.chromium.org/2637223002 .
Cr-Commit-Position: refs/branch-heads/2924@{#783}
Cr-Branched-From: 3a87aecc31cd1ffe751dd72c04e5a96a1fc8108a-refs/heads/master@{#433059}
Committed: https://chromium.googlesource.com/chromium/src/+/02e2db011add619c52509d0b1d42e85448062609

[ericrk, 2017-01-17 19:49:17]

Description was changed from

==========
Don't use DF text during animations

Previously, we enabled distance-field text during animations in
order to improve GPU raster performance. Now that GPU raster
handles animations the same way as SW - only rastering at specific
scales and interpolating, this optimization isn't necessary.

In certain cases, the optimization causes visual differences
between non-animating and animating content, so removing this
improves our correctness as well.

R=ajuma@chromium.org
BUG=668723
CQ_INCLUDE_TRYBOTS=master.tryserver.blink:linux_trusty_blink_rel

Review-Url: https://codereview.chromium.org/2605273003
Cr-Commit-Position: refs/heads/master@{#441204}
(cherry picked from commit b04a4a62bc244a238e63c6862be0ed6dfe84a837)
==========

to

==========
Don't use DF text during animations

Previously, we enabled distance-field text during animations in
order to improve GPU raster performance. Now that GPU raster
handles animations the same way as SW - only rastering at specific
scales and interpolating, this optimization isn't necessary.

In certain cases, the optimization causes visual differences
between non-animating and animating content, so removing this
improves our correctness as well.

R=ajuma@chromium.org
BUG=668723
CQ_INCLUDE_TRYBOTS=master.tryserver.blink:linux_trusty_blink_rel

Review-Url: https://codereview.chromium.org/2605273003
Cr-Commit-Position: refs/heads/master@{#441204}
(cherry picked from commit b04a4a62bc244a238e63c6862be0ed6dfe84a837)

Review-Url: https://codereview.chromium.org/2637223002 .
Cr-Commit-Position: refs/branch-heads/2924@{#783}
Cr-Branched-From:
3a87aecc31cd1ffe751dd72c04e5a96a1fc8108a-refs/heads/master@{#433059}
Committed:
https://chromium.googlesource.com/chromium/src/+/02e2db011add619c52509d0b1d42...
==========

[ericrk, 2017-01-17 19:49:18]

Committed patchset #1 (id:1) manually as
02e2db011add619c52509d0b1d42e85448062609.