Use field_trial::IsEnabled for FlexFEC.

Use field_trial::IsEnabled for FlexFEC.

Also clarify some comments.

BUG=webrtc:5654
Review-Url: https://codereview.webrtc.org/2839883002
Cr-Commit-Position: refs/heads/master@{#17875}
Committed: https://chromium.googlesource.com/external/webrtc/+/dbb1be59ff12176ee4ec0c5ab4a0693748a1fc06

[brandtr, 2017-04-25 08:29:12]

brandtr@webrtc.org changed reviewers:
+ magjed@webrtc.org

[brandtr, 2017-04-25 08:29:13]

Please take a look.

[magjed_webrtc, 2017-04-25 08:45:04]

lgtm

[magjed_webrtc, 2017-04-25 08:45:04]

lgtm

lgtm

[brandtr, 2017-04-26 06:41:14]

The CQ bit was checked by brandtr@webrtc.org

[commit-bot: I haz the power, 2017-04-26 06:41:25]

CQ is trying da patch.

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

[commit-bot: I haz the power, 2017-04-26 07:02:35]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1493188874103280, "parent_rev":
"81c79f51aa842e0c8254ebd4e91dfb0cea7c181e", "commit_rev":
"dbb1be59ff12176ee4ec0c5ab4a0693748a1fc06"}

[commit-bot: I haz the power, 2017-04-26 07:02:39]

Description was changed from

==========
Use field_trial::IsEnabled for FlexFEC.

Also clarify some comments.

BUG=webrtc:5654
==========

to

==========
Use field_trial::IsEnabled for FlexFEC.

Also clarify some comments.

BUG=webrtc:5654

Review-Url: https://codereview.webrtc.org/2839883002
Cr-Commit-Position: refs/heads/master@{#17875}
Committed:
https://chromium.googlesource.com/external/webrtc/+/dbb1be59ff12176ee4ec0c5ab...
==========

[commit-bot: I haz the power, 2017-04-26 07:02:40]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/external/webrtc/+/dbb1be59ff12176ee4ec0c5ab...