Removed mutable from PassRefPtr's raw pointer member.

Removed mutable from PassRefPtr's raw pointer member.

PassRefPtr is going to be replaced with RefPtr, and RefPtr's raw pointer
member is not mutable.

BUG=494719
Review-Url: https://codereview.chromium.org/2882943002
Cr-Commit-Position: refs/heads/master@{#471973}
Committed: https://chromium.googlesource.com/chromium/src/+/c97b0b391db3ec87fbcf5c977aa3369e10f68ad7

[Bugs Nash, 2017-05-15 04:52:09]

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

[commit-bot: I haz the power, 2017-05-15 04:52:19]

Dry run: CQ is trying da patch.

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

[Bugs Nash, 2017-05-15 04:53:32]

bugsnash@chromium.org changed reviewers:
+ yutak@chromium.org

[Yuta Kitamura, 2017-05-15 04:54:40]

lgtm

[commit-bot: I haz the power, 2017-05-15 08:49:18]

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

[commit-bot: I haz the power, 2017-05-15 08:49:19]

Dry run: This issue passed the CQ dry run.

[Bugs Nash, 2017-05-16 01:12:40]

The CQ bit was checked by bugsnash@chromium.org

[commit-bot: I haz the power, 2017-05-16 01:13:52]

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, 2017-05-16 01:35:41]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1494897160484650, "parent_rev":
"c5c0e3915f1e7f3e7bf0798340b91c87f10056c1", "commit_rev":
"c97b0b391db3ec87fbcf5c977aa3369e10f68ad7"}

[commit-bot: I haz the power, 2017-05-16 01:35:56]

Description was changed from

==========
Removed mutable from PassRefPtr's raw pointer member.

PassRefPtr is going to be replaced with RefPtr, and RefPtr's raw pointer
member is not mutable.

BUG=494719
==========

to

==========
Removed mutable from PassRefPtr's raw pointer member.

PassRefPtr is going to be replaced with RefPtr, and RefPtr's raw pointer
member is not mutable.

BUG=494719

Review-Url: https://codereview.chromium.org/2882943002
Cr-Commit-Position: refs/heads/master@{#471973}
Committed:
https://chromium.googlesource.com/chromium/src/+/c97b0b391db3ec87fbcf5c977aa3...
==========

[commit-bot: I haz the power, 2017-05-16 01:35:57]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/chromium/src/+/c97b0b391db3ec87fbcf5c977aa3...