Restore webkit-font-smoothing.

Restore webkit-font-smoothing.

With https://codereview.chromium.org/175253002 (Blink r182920)
webkit-font-smoothing was broken on Mac. This restores
the previous behavior.

BUG=chromium:421412
Committed: https://src.chromium.org/viewvc/blink?view=rev&revision=185065

[bungeman-chromium, 2014-11-07 15:57:04]

bungeman@chromium.org changed reviewers:
+ dominik.rottsches@intel.com, eae@chromium.org, esprehn@chromium.org

[bungeman-chromium, 2014-11-07 15:57:04]

This restores the behavior we had before, where the information was only
available at raster time.

[esprehn, 2014-11-07 18:05:54]

Can you add a test?

[bungeman-chromium, 2014-11-07 18:19:01]

On 2014/11/07 18:05:54, esprehn wrote:
> Can you add a test?

Not sure what you mean, this changes at least 200 tests. (See PS1, currently
putting together rebaseline.)

Note that all of the virtual/antialiased changes on Mac are expected, but the
shadow changes are due to a bug in Skia which will need to be fixed separately.
In any event, it's what we used to do.

[esprehn, 2014-11-07 18:22:18]

On 2014/11/07 at 18:19:01, bungeman wrote:
> On 2014/11/07 18:05:54, esprehn wrote:
> > Can you add a test?
> 
> Not sure what you mean, this changes at least 200 tests. (See PS1, currently
putting together rebaseline.)
> 
> Note that all of the virtual/antialiased changes on Mac are expected, but the
shadow changes are due to a bug in Skia which will need to be fixed separately.
In any event, it's what we used to do.

Can you add the TestExpectations for mac?

[bungeman-chromium, 2014-11-07 18:53:41]

On 2014/11/07 18:22:18, esprehn wrote:
> On 2014/11/07 at 18:19:01, bungeman wrote:
> > On 2014/11/07 18:05:54, esprehn wrote:
> > > Can you add a test?
> > 
> > Not sure what you mean, this changes at least 200 tests. (See PS1, currently
> putting together rebaseline.)
> > 
> > Note that all of the virtual/antialiased changes on Mac are expected, but
the
> shadow changes are due to a bug in Skia which will need to be fixed
separately.
> In any event, it's what we used to do.
> 
> Can you add the TestExpectations for mac?

Yes, that's what I'm currently working on, but it's being made difficult by the
fact that a number of these are being suppressed for other reasons and on
sub-platforms (like SnowLeopard). When the switch to HarfBuzz was made a very
large number of suppressions were introduced, and there are still quite a number
of them.

[bungeman-chromium, 2014-11-10 20:24:40]

It appears that I have managed to make the bots happy for the time being. Please
take a look.

[eae, 2014-11-10 20:28:22]

LGTM

[bungeman-chromium, 2014-11-10 20:31:15]

The CQ bit was checked by bungeman@chromium.org

[commit-bot: I haz the power, 2014-11-10 20:31:37]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/692643006/120001

[commit-bot: I haz the power, 2014-11-10 21:44:15]

Committed patchset #7 (id:120001) as 185065