When invalidating InlineBox ensure its painting layer is setNeedsRepaint

When invalidating InlineBox ensure its painting layer is setNeedsRepaint

This was missed in https://codereview.chromium.org/2051333005/.

BUG=621713
Committed: https://crrev.com/00fc2b7dadc1004fbc3cb7f9f820df9a85c05fdf
Cr-Commit-Position: refs/heads/master@{#401107}

[Xianzhu, 2016-06-21 17:35:11]

wangxianzhu@chromium.org changed reviewers:
+ chrishtr@chromium.org

[Xianzhu, 2016-06-21 17:35:12]

With the added DCHECK(paintingLayer()->needsRepaint()) (which was missed in
https://codereview.chromium.org/2051333005/), the existing tests can cover this.

[Xianzhu, 2016-06-21 17:36:56]

Note that this just has the same performance as before
https://codereview.chromium.org/2051333005/ (when
slowSetPaintingLayerNeedsRepaintAndInvalidateDisplayItem was
invalidateDisplayItem).

[chrishtr, 2016-06-21 20:41:42]

The CQ bit was checked by chrishtr@chromium.org

[chrishtr, 2016-06-21 20:41:43]

lgtm

[commit-bot: I haz the power, 2016-06-21 20:42:14]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/2086613004/80001

[commit-bot: I haz the power, 2016-06-21 21:10:55]

Committed patchset #5 (id:80001)

[commit-bot: I haz the power, 2016-06-21 21:12:32]

Description was changed from

==========
When invalidating InlineBox ensure its painting layer is setNeedsRepaint

This was missed in https://codereview.chromium.org/2051333005/.

BUG=621713
==========

to

==========
When invalidating InlineBox ensure its painting layer is setNeedsRepaint

This was missed in https://codereview.chromium.org/2051333005/.

BUG=621713

Committed: https://crrev.com/00fc2b7dadc1004fbc3cb7f9f820df9a85c05fdf
Cr-Commit-Position: refs/heads/master@{#401107}
==========

[commit-bot: I haz the power, 2016-06-21 21:12:33]

Patchset 5 (id:??) landed as
https://crrev.com/00fc2b7dadc1004fbc3cb7f9f820df9a85c05fdf
Cr-Commit-Position: refs/heads/master@{#401107}