Fix nits in vie_encoder

Fix nits in vie_encoder

Updated comment.
Don't call AdaptUp/AdaptDown in tests without first emitting a frame.
Handle frame received precondition in AdaptUp/AdaptDown with DCHECK
instead of return.

BUG=webrtc:4172, webrtc:6850
Review-Url: https://codereview.webrtc.org/2690023002
Cr-Commit-Position: refs/heads/master@{#16572}
Committed: https://chromium.googlesource.com/external/webrtc/+/be03724ae1a1fc677d15ff77a90b0e578d98c4ce

[sprang_webrtc, 2017-02-13 09:27:13]

The CQ bit was checked by sprang@webrtc.org to run a CQ dry run

[commit-bot: I haz the power, 2017-02-13 09:27:19]

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

[sprang_webrtc, 2017-02-13 10:06:19]

sprang@webrtc.org changed reviewers:
+ ilnik@webrtc.org

[commit-bot: I haz the power, 2017-02-13 10:21:05]

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

[commit-bot: I haz the power, 2017-02-13 10:21:06]

Dry run: This issue passed the CQ dry run.

[ilnik, 2017-02-13 10:32:48]

On 2017/02/13 10:06:19, språng wrote:

lgtm

[sprang_webrtc, 2017-02-13 10:35:36]

The CQ bit was checked by sprang@webrtc.org

[commit-bot: I haz the power, 2017-02-13 10:35:44]

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, 2017-02-13 10:38:18]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1486982136520610, "parent_rev":
"7041eed59f389036cdbd2bbb8a55004bbefea393", "commit_rev":
"be03724ae1a1fc677d15ff77a90b0e578d98c4ce"}

[commit-bot: I haz the power, 2017-02-13 10:38:20]

Description was changed from

==========
Fix nits in vie_encoder

Updated comment.
Don't call AdaptUp/AdaptDown in tests without first emitting a frame.
Handle frame received precondition in AdaptUp/AdaptDown with DCHECK
instead of return.

BUG=webrtc:4172, webrtc:6850
==========

to

==========
Fix nits in vie_encoder

Updated comment.
Don't call AdaptUp/AdaptDown in tests without first emitting a frame.
Handle frame received precondition in AdaptUp/AdaptDown with DCHECK
instead of return.

BUG=webrtc:4172, webrtc:6850

Review-Url: https://codereview.webrtc.org/2690023002
Cr-Commit-Position: refs/heads/master@{#16572}
Committed:
https://chromium.googlesource.com/external/webrtc/+/be03724ae1a1fc677d15ff77a...
==========

[commit-bot: I haz the power, 2017-02-13 10:38:21]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/external/webrtc/+/be03724ae1a1fc677d15ff77a...