Introduce HTMLInputElement::m_hasDirtyValue.

Introduce HTMLInputElement::m_hasDirtyValue.

Add a bool flag to represent the dirty flag [1]. We replace
!m_valueIfDirty.isNull() for dirty flag checking with the new flag.

This CL has no behavior changes.  This CL is a preparation to make
m_valueIfDirty a permanent storage of |value| IDL attribute.

[1] https://html.spec.whatwg.org/multipage/forms.html#concept-input-value-dirty-flag
[2] https://html.spec.whatwg.org/multipage/forms.html#dom-input-value

BUG=633074
Committed: https://crrev.com/930e066130dc8621d4b25c8bfe14d8fff315404e
Cr-Commit-Position: refs/heads/master@{#421100}

[tkent, 2016-09-26 08:17:48]

The CQ bit was checked by tkent@chromium.org to run a CQ dry run

[commit-bot: I haz the power, 2016-09-26 08:18:06]

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

[tkent, 2016-09-26 08:18:42]

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

[tkent, 2016-09-26 08:18:54]

keishi, would you review this please?

[commit-bot: I haz the power, 2016-09-26 08:54:30]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2016-09-26 08:54:31]

Dry run: Try jobs failed on following builders:
  win_chromium_x64_rel_ng on master.tryserver.chromium.win (JOB_FAILED,
http://build.chromium.org/p/tryserver.chromium.win/builders/win_chromium_x64_...)

[tkent, 2016-09-26 08:59:36]

The CQ bit was checked by tkent@chromium.org to run a CQ dry run

[commit-bot: I haz the power, 2016-09-26 08:59:55]

Dry run: 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, 2016-09-26 09:52:32]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2016-09-26 09:52:32]

Dry run: Try jobs failed on following builders:
  win_chromium_x64_rel_ng on master.tryserver.chromium.win (JOB_FAILED,
http://build.chromium.org/p/tryserver.chromium.win/builders/win_chromium_x64_...)

[keishi, 2016-09-27 01:12:39]

LGTM

[tkent, 2016-09-27 01:13:49]

The CQ bit was checked by tkent@chromium.org

[commit-bot: I haz the power, 2016-09-27 01:14:40]

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, 2016-09-27 04:18:07]

Committed patchset #2 (id:20001)

[commit-bot: I haz the power, 2016-09-27 04:21:33]

Description was changed from

==========
Introduce HTMLInputElement::m_hasDirtyValue.

Add a bool flag to represent the dirty flag [1]. We replace
!m_valueIfDirty.isNull() for dirty flag checking with the new flag.

This CL has no behavior changes.  This CL is a preparation to make
m_valueIfDirty a permanent storage of |value| IDL attribute.

[1]
https://html.spec.whatwg.org/multipage/forms.html#concept-input-value-dirty-flag
[2] https://html.spec.whatwg.org/multipage/forms.html#dom-input-value

BUG=633074
==========

to

==========
Introduce HTMLInputElement::m_hasDirtyValue.

Add a bool flag to represent the dirty flag [1]. We replace
!m_valueIfDirty.isNull() for dirty flag checking with the new flag.

This CL has no behavior changes.  This CL is a preparation to make
m_valueIfDirty a permanent storage of |value| IDL attribute.

[1]
https://html.spec.whatwg.org/multipage/forms.html#concept-input-value-dirty-flag
[2] https://html.spec.whatwg.org/multipage/forms.html#dom-input-value

BUG=633074

Committed: https://crrev.com/930e066130dc8621d4b25c8bfe14d8fff315404e
Cr-Commit-Position: refs/heads/master@{#421100}
==========

[commit-bot: I haz the power, 2016-09-27 04:21:34]

Patchset 2 (id:??) landed as
https://crrev.com/930e066130dc8621d4b25c8bfe14d8fff315404e
Cr-Commit-Position: refs/heads/master@{#421100}