Restore epsilon tolerance in LineWidth

Restore epsilon tolerance in LineWidth

Restore the LayoutUnit::epsilon tolerance in LineWidth::fitsOnLine calls
to avoid unnecessary breaks at element boundaries due to precision loss.

R=szager@chromium.org
BUG=613118
TEST=fast/text/sub-pixel/button-span-wrap.html

Committed: https://crrev.com/d501ee220d6edaf83e98815945e3fca7766f43dd
Cr-Commit-Position: refs/heads/master@{#397185}

[eae, 2016-05-31 21:19:05]

Temporarily restoring the epilon hack to fix a release blocker.

[szager1, 2016-06-01 07:02:39]

lgtm :(

[eae, 2016-06-01 16:09:18]

The CQ bit was checked by eae@chromium.org

[commit-bot: I haz the power, 2016-06-01 16:09:53]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/2026073002/20001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/2026073002/20001

[commit-bot: I haz the power, 2016-06-01 18:06:23]

Committed patchset #2 (id:20001)

[commit-bot: I haz the power, 2016-06-01 18:07:33]

Description was changed from

==========
Restore epsilon tolerance in LineWidth

Restore the LayoutUnit::epsilon tolerance in LineWidth::fitsOnLine calls
to avoid unnecessary breaks at element boundaries due to precision loss.

R=szager@chromium.org
BUG=613118
TEST=fast/text/sub-pixel/button-span-wrap.html
==========

to

==========
Restore epsilon tolerance in LineWidth

Restore the LayoutUnit::epsilon tolerance in LineWidth::fitsOnLine calls
to avoid unnecessary breaks at element boundaries due to precision loss.

R=szager@chromium.org
BUG=613118
TEST=fast/text/sub-pixel/button-span-wrap.html

Committed: https://crrev.com/d501ee220d6edaf83e98815945e3fca7766f43dd
Cr-Commit-Position: refs/heads/master@{#397185}
==========

[commit-bot: I haz the power, 2016-06-01 18:07:35]

Patchset 2 (id:??) landed as
https://crrev.com/d501ee220d6edaf83e98815945e3fca7766f43dd
Cr-Commit-Position: refs/heads/master@{#397185}