Make PropertyReference value() return a const CSSValue&

Make PropertyReference value() return a const CSSValue&

Make PropertyReference value() return a const CSSValue& instead of a
const CSSValue*. Since a Property cannot have a null CSSValue, this is
more semantically correct and safe.

BUG=526586
Committed: https://crrev.com/c516fb70c460da1d6f1b8d11aa276d8ece48eda3
Cr-Commit-Position: refs/heads/master@{#406526}

[sashab, 2016-06-09 05:59:44]

sashab@chromium.org changed reviewers:
+ timloh@chromium.org

[sashab, 2016-07-18 03:22:42]

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

[commit-bot: I haz the power, 2016-07-18 03:22:50]

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, 2016-07-18 04:54:36]

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

[commit-bot: I haz the power, 2016-07-18 04:54:37]

Dry run: This issue passed the CQ dry run.

[sashab, 2016-07-20 02:48:36]

sashab@chromium.org changed reviewers:
+ haraken@chromium.org
- timloh@chromium.org

[sashab, 2016-07-20 02:48:36]

Haraken ptal! :)

[haraken, 2016-07-20 07:16:16]

LGTM

[sashab, 2016-07-20 07:18:11]

The CQ bit was checked by sashab@chromium.org

[commit-bot: I haz the power, 2016-07-20 07:18:26]

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, 2016-07-20 12:52:00]

Committed patchset #2 (id:20001)

[commit-bot: I haz the power, 2016-07-20 12:53:54]

Description was changed from

==========
Make PropertyReference value() return a const CSSValue&

Make PropertyReference value() return a const CSSValue& instead of a
const CSSValue*. Since a Property cannot have a null CSSValue, this is
more semantically correct and safe.

BUG=526586
==========

to

==========
Make PropertyReference value() return a const CSSValue&

Make PropertyReference value() return a const CSSValue& instead of a
const CSSValue*. Since a Property cannot have a null CSSValue, this is
more semantically correct and safe.

BUG=526586

Committed: https://crrev.com/c516fb70c460da1d6f1b8d11aa276d8ece48eda3
Cr-Commit-Position: refs/heads/master@{#406526}
==========

[commit-bot: I haz the power, 2016-07-20 12:53:55]

Patchset 2 (id:??) landed as
https://crrev.com/c516fb70c460da1d6f1b8d11aa276d8ece48eda3
Cr-Commit-Position: refs/heads/master@{#406526}