Revert of Remove the deprecated EncodeInternal interface from AudioEncoder

Revert of Remove the deprecated EncodeInternal interface from AudioEncoder (patchset #4 id:60001 of https://codereview.webrtc.org/1864993002/ )

Reason for revert:
Broke import. Implementations of the old interface still exists somewhere.

Original issue's description:
> Remove the deprecated EncodeInternal interface from AudioEncoder
>
> Also hid MaxEncodedBytes by making it private. It will get removed as soon as subclasses have had time to remove their overrides.
>
> BUG=webrtc:5591
>
> Committed: https://crrev.com/5222d315dbea8f3563c100cc9f2451907f70b05f
> Cr-Commit-Position: refs/heads/master@{#12329}

TBR=kwiberg@webrtc.org,solenberg@webrtc.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=webrtc:5591
Committed: https://crrev.com/164bc4bbd3acae12e86bd386bffa68925a870034
Cr-Commit-Position: refs/heads/master@{#12330}

[ossu, 2016-04-12 10:57:54]

Created Revert of Remove the deprecated EncodeInternal interface from
AudioEncoder

[commit-bot: I haz the power, 2016-04-12 10:57:59]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1883543002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1883543002/1

[commit-bot: I haz the power, 2016-04-12 10:58:10]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-04-12 10:58:13]

Description was changed from

==========
Revert of Remove the deprecated EncodeInternal interface from AudioEncoder
(patchset #4 id:60001 of https://codereview.webrtc.org/1864993002/ )

Reason for revert:
Broke import. Implementations of the old interface still exists somewhere.

Original issue's description:
> Remove the deprecated EncodeInternal interface from AudioEncoder
> 
> Also hid MaxEncodedBytes by making it private. It will get removed as soon as
subclasses have had time to remove their overrides.
> 
> BUG=webrtc:5591
> 
> Committed: https://crrev.com/5222d315dbea8f3563c100cc9f2451907f70b05f
> Cr-Commit-Position: refs/heads/master@{#12329}

TBR=kwiberg@webrtc.org,solenberg@webrtc.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=webrtc:5591
==========

to

==========
Revert of Remove the deprecated EncodeInternal interface from AudioEncoder
(patchset #4 id:60001 of https://codereview.webrtc.org/1864993002/ )

Reason for revert:
Broke import. Implementations of the old interface still exists somewhere.

Original issue's description:
> Remove the deprecated EncodeInternal interface from AudioEncoder
>
> Also hid MaxEncodedBytes by making it private. It will get removed as soon as
subclasses have had time to remove their overrides.
>
> BUG=webrtc:5591
>
> Committed: https://crrev.com/5222d315dbea8f3563c100cc9f2451907f70b05f
> Cr-Commit-Position: refs/heads/master@{#12329}

TBR=kwiberg@webrtc.org,solenberg@webrtc.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=webrtc:5591

Committed: https://crrev.com/164bc4bbd3acae12e86bd386bffa68925a870034
Cr-Commit-Position: refs/heads/master@{#12330}
==========

[commit-bot: I haz the power, 2016-04-12 10:58:14]

Patchset 1 (id:??) landed as
https://crrev.com/164bc4bbd3acae12e86bd386bffa68925a870034
Cr-Commit-Position: refs/heads/master@{#12330}