Revert of Request keyframes more frequently on stream start/decoding error.

Revert of Request keyframes more frequently on stream start/decoding error. (patchset #1 id:1 of https://codereview.webrtc.org/2993793002/ )

Reason for revert:
Broke downstream test that was waiting for 5 keyframes to be received within 10 seconds. Maybe the issue is that "stats_callback_->OnCompleteFrame(frame->num_references == 0, ..." was changed to "frame->is_keyframe()"?

Original issue's description:
> Request keyframes more frequently on stream start/decoding error.
> 
> In this CL:
>  - Added FrameObject::is_keyframe() convinience function.
>  - Moved logic to request keyframes on decoding error from VideoReceived to
>    VideoReceiveStream.
>  - Added keyframe_required as a parameter to FrameBuffer::NextFrame.
> 
> BUG=webrtc:8074
> 
> Review-Url: https://codereview.webrtc.org/2993793002
> Cr-Commit-Position: refs/heads/master@{#19280}
> Committed: https://chromium.googlesource.com/external/webrtc/+/26b48043581735eed6e36b95fae6f5b1bcf8cfb5

TBR=terelius@webrtc.org,stefan@webrtc.org,noahric@chromium.org,philipel@webrtc.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=webrtc:8074
Review-Url: https://codereview.webrtc.org/2994043002
Cr-Commit-Position: refs/heads/master@{#19295}
Committed: https://chromium.googlesource.com/external/webrtc/+/77a983185f57628cd5955bd2c0a1bf71c30439bb

[Taylor Brandstetter, 2017-08-09 22:55:26]

The CQ bit was checked by deadbeef@webrtc.org

[Taylor Brandstetter, 2017-08-09 22:55:26]

Created Revert of Request keyframes more frequently on stream start/decoding
error.

[commit-bot: I haz the power, 2017-08-09 22:55:32]

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, 2017-08-09 22:55:42]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1502319326031450, "parent_rev":
"03adb7c6dc791e36c7096ce94299975281902506", "commit_rev":
"77a983185f57628cd5955bd2c0a1bf71c30439bb"}

[commit-bot: I haz the power, 2017-08-09 22:55:49]

Description was changed from

==========
Revert of Request keyframes more frequently on stream start/decoding error.
(patchset #1 id:1 of https://codereview.webrtc.org/2993793002/ )

Reason for revert:
Broke downstream test that was waiting for 5 keyframes to be received within 10
seconds. Maybe the issue is that
"stats_callback_->OnCompleteFrame(frame->num_references == 0, ..." was changed
to "frame->is_keyframe()"?

Original issue's description:
> Request keyframes more frequently on stream start/decoding error.
> 
> In this CL:
>  - Added FrameObject::is_keyframe() convinience function.
>  - Moved logic to request keyframes on decoding error from VideoReceived to
>    VideoReceiveStream.
>  - Added keyframe_required as a parameter to FrameBuffer::NextFrame.
> 
> BUG=webrtc:8074
> 
> Review-Url: https://codereview.webrtc.org/2993793002
> Cr-Commit-Position: refs/heads/master@{#19280}
> Committed:
https://chromium.googlesource.com/external/webrtc/+/26b48043581735eed6e36b95f...

TBR=terelius@webrtc.org,stefan@webrtc.org,noahric@chromium.org,philipel@webrt...
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=webrtc:8074
==========

to

==========
Revert of Request keyframes more frequently on stream start/decoding error.
(patchset #1 id:1 of https://codereview.webrtc.org/2993793002/ )

Reason for revert:
Broke downstream test that was waiting for 5 keyframes to be received within 10
seconds. Maybe the issue is that
"stats_callback_->OnCompleteFrame(frame->num_references == 0, ..." was changed
to "frame->is_keyframe()"?

Original issue's description:
> Request keyframes more frequently on stream start/decoding error.
> 
> In this CL:
>  - Added FrameObject::is_keyframe() convinience function.
>  - Moved logic to request keyframes on decoding error from VideoReceived to
>    VideoReceiveStream.
>  - Added keyframe_required as a parameter to FrameBuffer::NextFrame.
> 
> BUG=webrtc:8074
> 
> Review-Url: https://codereview.webrtc.org/2993793002
> Cr-Commit-Position: refs/heads/master@{#19280}
> Committed:
https://chromium.googlesource.com/external/webrtc/+/26b48043581735eed6e36b95f...

TBR=terelius@webrtc.org,stefan@webrtc.org,noahric@chromium.org,philipel@webrt...
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=webrtc:8074

Review-Url: https://codereview.webrtc.org/2994043002
Cr-Commit-Position: refs/heads/master@{#19295}
Committed:
https://chromium.googlesource.com/external/webrtc/+/77a983185f57628cd5955bd2c...
==========

[commit-bot: I haz the power, 2017-08-09 22:55:51]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/external/webrtc/+/77a983185f57628cd5955bd2c...

[philipel, 2017-08-10 08:36:35]

A revert of this CL (patchset #1 id:1) has been created in
https://codereview.chromium.org/2996823002/ by philipel@webrtc.org.

The reason for reverting is: Create fix CL..