Migrate WTF::LinkedHashSet/ListHashSet::first() to ::front()

Migrate WTF::LinkedHashSet/ListHashSet::first() to ::front()

As discussed on platform-architecture-dev [0], there is interest in
normalizing the methods of WTF classes to better align with std classes.

There are no functional changes.

[0] https://groups.google.com/a/chromium.org/d/topic/platform-architecture-dev/I7jnz4p1h84/discussion

BUG=662431
Review-Url: https://codereview.chromium.org/2722413005
Cr-Commit-Position: refs/heads/master@{#454631}
Committed: https://chromium.googlesource.com/chromium/src/+/c1e9bdb6d21349e58a1c1bc6444d776967768011

[pilgrim_google, 2017-03-03 15:34:49]

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

[commit-bot: I haz the power, 2017-03-03 15:34:57]

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

[pilgrim_google, 2017-03-03 15:35:02]

pilgrim@chromium.org changed reviewers:
+ esprehn@chromium.org, haraken@chromium.org, yutak@chromium.org

[commit-bot: I haz the power, 2017-03-03 17:11:31]

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

[commit-bot: I haz the power, 2017-03-03 17:11:32]

Dry run: This issue passed the CQ dry run.

[haraken, 2017-03-03 18:16:27]

LGTM

[pilgrim_google, 2017-03-03 18:32:16]

The CQ bit was checked by pilgrim@chromium.org

[commit-bot: I haz the power, 2017-03-03 18:32:50]

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, 2017-03-03 18:36:30]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1488565936629130, "parent_rev":
"b9645b9856820c968a4b07bcf9fa8381114b1200", "commit_rev":
"c1e9bdb6d21349e58a1c1bc6444d776967768011"}

[commit-bot: I haz the power, 2017-03-03 18:37:09]

Description was changed from

==========
Migrate WTF::LinkedHashSet/ListHashSet::first() to ::front()

As discussed on platform-architecture-dev [0], there is interest in
normalizing the methods of WTF classes to better align with std classes.

There are no functional changes.

[0]
https://groups.google.com/a/chromium.org/d/topic/platform-architecture-dev/I7...

BUG=662431
==========

to

==========
Migrate WTF::LinkedHashSet/ListHashSet::first() to ::front()

As discussed on platform-architecture-dev [0], there is interest in
normalizing the methods of WTF classes to better align with std classes.

There are no functional changes.

[0]
https://groups.google.com/a/chromium.org/d/topic/platform-architecture-dev/I7...

BUG=662431

Review-Url: https://codereview.chromium.org/2722413005
Cr-Commit-Position: refs/heads/master@{#454631}
Committed:
https://chromium.googlesource.com/chromium/src/+/c1e9bdb6d21349e58a1c1bc6444d...
==========

[commit-bot: I haz the power, 2017-03-03 18:37:10]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/chromium/src/+/c1e9bdb6d21349e58a1c1bc6444d...