Bump up point where we switch to distance fields for large glyphs

Bump up point where we switch to distance fields for large glyphs

This is hopefully a temporary fix. It's unclear why distance fields
are so much slower on the N4 (and N7).

BUG=chromium:467569
Committed: https://skia.googlesource.com/skia/+/0fce1fb02d93e66d42528f322f8aa4ca64ff0fb2

[jvanverth1, 2015-06-16 14:57:42]

jvanverth@google.com changed reviewers:
+ bsalomon@google.com, joshualitt@google.com

[jvanverth1, 2015-06-16 14:57:42]

jvanverth@google.com changed required reviewers:
+ joshualitt@google.com

[bsalomon, 2015-06-16 15:00:30]

lgtm

[jvanverth1, 2015-06-16 15:40:30]

jvanverth@google.com changed required reviewers:
- joshualitt@google.com

[jvanverth1, 2015-06-16 15:40:41]

The CQ bit was checked by jvanverth@google.com

[commit-bot: I haz the power, 2015-06-16 15:40:51]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1184153004/1

[commit-bot: I haz the power, 2015-06-16 15:46:28]

Committed patchset #1 (id:1) as
https://skia.googlesource.com/skia/+/0fce1fb02d93e66d42528f322f8aa4ca64ff0fb2

[jvanverth1, 2015-06-17 20:06:29]

A revert of this CL (patchset #1 id:1) has been created in
https://codereview.chromium.org/1178713005/ by jvanverth@google.com.

The reason for reverting is: Seeing some Nexus 4 perf regressions in individual
tests in Chromium that may be due to this change. This doesn't appear to be the
correct fix for the bug in any case..