Replace pointers in ComputedStyle::*DataEquivalent functions with refs.

Replace pointers in ComputedStyle::*DataEquivalent functions with refs.

Currently, there are a few *DataEquivalent functions in ComputedStyle
that take a pointer. All these functions assume that the pointers are
not null, so we can simply replace them with references.

BUG=628043
Review-Url: https://codereview.chromium.org/2905793002
Cr-Commit-Position: refs/heads/master@{#474924}
Committed: https://chromium.googlesource.com/chromium/src/+/ea2ef980b38e4a7f741f9f8220f48841ddd71df7

[shend, 2017-05-25 06:24:37]

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

[commit-bot: I haz the power, 2017-05-25 06:24:53]

Dry run: CQ is trying da patch.

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

[shend, 2017-05-25 08:15:04]

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

[commit-bot: I haz the power, 2017-05-25 08:15:24]

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, 2017-05-25 11:32:26]

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

[commit-bot: I haz the power, 2017-05-25 11:32:27]

Dry run: This issue passed the CQ dry run.

[shend, 2017-05-25 22:25:34]

shend@chromium.org changed reviewers:
+ meade@chromium.org

[shend, 2017-05-25 22:25:34]

Hi Eddy, PTAL

[meade_UTC10, 2017-05-26 05:11:36]

lgtm

lol const_cast... nice

[shend, 2017-05-26 05:26:00]

The CQ bit was checked by shend@chromium.org

[commit-bot: I haz the power, 2017-05-26 05:26:35]

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, 2017-05-26 05:31:21]

CQ is committing da patch.

Bot data: {"patchset_id": 20001, "attempt_start_ts": 1495776360882000,
"parent_rev": "ec8d10454b0e3672746db92a5d2dee67f5e336dc", "commit_rev":
"ea2ef980b38e4a7f741f9f8220f48841ddd71df7"}

[commit-bot: I haz the power, 2017-05-26 05:31:41]

Description was changed from

==========
Replace pointers in ComputedStyle::*DataEquivalent functions with refs.

Currently, there are a few *DataEquivalent functions in ComputedStyle
that take a pointer. All these functions assume that the pointers are
not null, so we can simply replace them with references.

BUG=628043
==========

to

==========
Replace pointers in ComputedStyle::*DataEquivalent functions with refs.

Currently, there are a few *DataEquivalent functions in ComputedStyle
that take a pointer. All these functions assume that the pointers are
not null, so we can simply replace them with references.

BUG=628043

Review-Url: https://codereview.chromium.org/2905793002
Cr-Commit-Position: refs/heads/master@{#474924}
Committed:
https://chromium.googlesource.com/chromium/src/+/ea2ef980b38e4a7f741f9f8220f4...
==========

[commit-bot: I haz the power, 2017-05-26 05:31:45]

Committed patchset #2 (id:20001) as
https://chromium.googlesource.com/chromium/src/+/ea2ef980b38e4a7f741f9f8220f4...