Reland of Use switch-case for CSS delimiter parsing

Reland of Use switch-case for CSS delimiter parsing (patchset #1 id:1 of https://codereview.chromium.org/2521043002/ )

Reason for revert:
Doesn't look like the revert helped in any way, so relanding

Original issue's description:
> Revert of Use switch-case for CSS delimiter parsing (patchset #2 id:20001 of https://codereview.chromium.org/2515633002/ )
>
> Reason for revert:
> Suspected cause for fast/forms/relayout-shifts-inner-editor.html failures.
>
> https://build.chromium.org/p/chromium.webkit/builders/WebKit%20Mac10.11%20%28dbg%29/builds/6029
> https://bugs.chromium.org/p/chromium/issues/detail?id=667403
>
> Original issue's description:
> > Use switch-case for CSS delimiter parsing
> >
> > This is style-only change and should not change any logic/behavior.
> >
> > Committed: https://crrev.com/87c9635abb27e45f913c174043fc115c088aead5
> > Cr-Commit-Position: refs/heads/master@{#433470}
>
> TBR=timloh@chromium.org,kochi@chromium.org
> # Skipping CQ checks because original CL landed less than 1 days ago.
> NOPRESUBMIT=true
> NOTREECHECKS=true
> NOTRY=true
>
> Committed: https://crrev.com/749322111601d5aef7f4679bde7652535ccbc391
> Cr-Commit-Position: refs/heads/master@{#433599}

TBR=timloh@chromium.org,kochi@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true

Committed: https://crrev.com/93fbcb734e49ba6719be0b926f865b4f944ec665
Cr-Commit-Position: refs/heads/master@{#433676}

[piman, 2016-11-21 22:28:05]

Created Reland of Use switch-case for CSS delimiter parsing

[piman, 2016-11-21 22:28:12]

The CQ bit was checked by piman@chromium.org

[commit-bot: I haz the power, 2016-11-21 22:29:03]

CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[commit-bot: I haz the power, 2016-11-21 22:29:49]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1479767292845330, "parent_rev":
"e6445179b149ebcd16d94ebdedcb97615a7346ef", "commit_rev":
"d67855227f17656f3ab57aa1a9d9228877389d2c"}

[commit-bot: I haz the power, 2016-11-21 22:30:20]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-11-21 22:32:51]

Description was changed from

==========
Reland of Use switch-case for CSS delimiter parsing (patchset #1 id:1 of
https://codereview.chromium.org/2521043002/ )

Reason for revert:
Doesn't look like the revert helped in any way, so relanding

Original issue's description:
> Revert of Use switch-case for CSS delimiter parsing (patchset #2 id:20001 of
https://codereview.chromium.org/2515633002/ )
> 
> Reason for revert:
> Suspected cause for fast/forms/relayout-shifts-inner-editor.html failures.
> 
>
https://build.chromium.org/p/chromium.webkit/builders/WebKit%20Mac10.11%20%28...
> https://bugs.chromium.org/p/chromium/issues/detail?id=667403
> 
> Original issue's description:
> > Use switch-case for CSS delimiter parsing
> >
> > This is style-only change and should not change any logic/behavior.
> >
> > Committed: https://crrev.com/87c9635abb27e45f913c174043fc115c088aead5
> > Cr-Commit-Position: refs/heads/master@{#433470}
> 
> TBR=timloh@chromium.org,kochi@chromium.org
> # Skipping CQ checks because original CL landed less than 1 days ago.
> NOPRESUBMIT=true
> NOTREECHECKS=true
> NOTRY=true
> 
> Committed: https://crrev.com/749322111601d5aef7f4679bde7652535ccbc391
> Cr-Commit-Position: refs/heads/master@{#433599}

TBR=timloh@chromium.org,kochi@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
==========

to

==========
Reland of Use switch-case for CSS delimiter parsing (patchset #1 id:1 of
https://codereview.chromium.org/2521043002/ )

Reason for revert:
Doesn't look like the revert helped in any way, so relanding

Original issue's description:
> Revert of Use switch-case for CSS delimiter parsing (patchset #2 id:20001 of
https://codereview.chromium.org/2515633002/ )
>
> Reason for revert:
> Suspected cause for fast/forms/relayout-shifts-inner-editor.html failures.
>
>
https://build.chromium.org/p/chromium.webkit/builders/WebKit%20Mac10.11%20%28...
> https://bugs.chromium.org/p/chromium/issues/detail?id=667403
>
> Original issue's description:
> > Use switch-case for CSS delimiter parsing
> >
> > This is style-only change and should not change any logic/behavior.
> >
> > Committed: https://crrev.com/87c9635abb27e45f913c174043fc115c088aead5
> > Cr-Commit-Position: refs/heads/master@{#433470}
>
> TBR=timloh@chromium.org,kochi@chromium.org
> # Skipping CQ checks because original CL landed less than 1 days ago.
> NOPRESUBMIT=true
> NOTREECHECKS=true
> NOTRY=true
>
> Committed: https://crrev.com/749322111601d5aef7f4679bde7652535ccbc391
> Cr-Commit-Position: refs/heads/master@{#433599}

TBR=timloh@chromium.org,kochi@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true

Committed: https://crrev.com/93fbcb734e49ba6719be0b926f865b4f944ec665
Cr-Commit-Position: refs/heads/master@{#433676}
==========

[commit-bot: I haz the power, 2016-11-21 22:32:52]

Patchset 1 (id:??) landed as
https://crrev.com/93fbcb734e49ba6719be0b926f865b4f944ec665
Cr-Commit-Position: refs/heads/master@{#433676}