Add three UseCounters for LABEL element.

Add three UseCounters for LABEL element.

HTMLLabelElementFormIsDifferentFromControlForm:
HTMLLabelElementHasNoControlAndFormIsAncestor:
  They are for label[form] deprecation.
  https://github.com/whatwg/html/issues/787

HTMLLabelElementControlForNonFormAssociatedElement
  This is for a LABEL with PROGRESS or METER.
  This is counted on any LABEL-specific behaviors.
  e.g.  |form| IDL access, |control| IDL access, Clicking a LABEL, etc.

This CL has no user-visible behavior changes.

BUG=594447
TBR=isherman@chromium.org

Committed: https://crrev.com/39e402647a842f4fcc12faded11d486aca8eda47
Cr-Commit-Position: refs/heads/master@{#380933}

[tkent, 2016-03-14 04:22:13]

tkent@chromium.org changed reviewers:
+ keishi@chromium.org

[tkent, 2016-03-14 04:22:14]

Keishi, would you review this please?

[keishi, 2016-03-14 04:37:21]

LGTM

[tkent, 2016-03-14 05:20:25]

Description was changed from

==========
Add three UseCounters for LABEL element.

HTMLLabelElementFormIsDifferentFromControlForm:
HTMLLabelElementHasNoControlAndFormIsAncestor:
  They are for label[form] deprecation.
  https://github.com/whatwg/html/issues/787

HTMLLabelElementControlForNonFormAssociatedElement
  This is for a LABEL with PROGRESS or METER.
  This is counted on any LABEL-specific behaviors.
  e.g.  |form| IDL access, |control| IDL access, Clicking a LABEL, etc.

This CL has no user-visible behavior changes.

BUG=594447
==========

to

==========
Add three UseCounters for LABEL element.

HTMLLabelElementFormIsDifferentFromControlForm:
HTMLLabelElementHasNoControlAndFormIsAncestor:
  They are for label[form] deprecation.
  https://github.com/whatwg/html/issues/787

HTMLLabelElementControlForNonFormAssociatedElement
  This is for a LABEL with PROGRESS or METER.
  This is counted on any LABEL-specific behaviors.
  e.g.  |form| IDL access, |control| IDL access, Clicking a LABEL, etc.

This CL has no user-visible behavior changes.

BUG=594447
TBR=isherman@chromium.org
==========

[tkent, 2016-03-14 05:20:25]

tkent@chromium.org changed reviewers:
+ isherman@chromium.org

[tkent, 2016-03-14 05:20:59]

TBRing isherman@chromium.org.  The histograms.xml change was done by a tool.

[tkent, 2016-03-14 05:21:08]

The CQ bit was checked by tkent@chromium.org

[commit-bot: I haz the power, 2016-03-14 05:21:18]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1790143004/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1790143004/1

[Ilya Sherman, 2016-03-14 05:38:57]

histograms.xml lgtm

[commit-bot: I haz the power, 2016-03-14 06:06:57]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-03-14 06:09:23]

Description was changed from

==========
Add three UseCounters for LABEL element.

HTMLLabelElementFormIsDifferentFromControlForm:
HTMLLabelElementHasNoControlAndFormIsAncestor:
  They are for label[form] deprecation.
  https://github.com/whatwg/html/issues/787

HTMLLabelElementControlForNonFormAssociatedElement
  This is for a LABEL with PROGRESS or METER.
  This is counted on any LABEL-specific behaviors.
  e.g.  |form| IDL access, |control| IDL access, Clicking a LABEL, etc.

This CL has no user-visible behavior changes.

BUG=594447
TBR=isherman@chromium.org
==========

to

==========
Add three UseCounters for LABEL element.

HTMLLabelElementFormIsDifferentFromControlForm:
HTMLLabelElementHasNoControlAndFormIsAncestor:
  They are for label[form] deprecation.
  https://github.com/whatwg/html/issues/787

HTMLLabelElementControlForNonFormAssociatedElement
  This is for a LABEL with PROGRESS or METER.
  This is counted on any LABEL-specific behaviors.
  e.g.  |form| IDL access, |control| IDL access, Clicking a LABEL, etc.

This CL has no user-visible behavior changes.

BUG=594447
TBR=isherman@chromium.org

Committed: https://crrev.com/39e402647a842f4fcc12faded11d486aca8eda47
Cr-Commit-Position: refs/heads/master@{#380933}
==========

[commit-bot: I haz the power, 2016-03-14 06:09:24]

Patchset 1 (id:??) landed as
https://crrev.com/39e402647a842f4fcc12faded11d486aca8eda47
Cr-Commit-Position: refs/heads/master@{#380933}