Revert of Add assembly for x86 to OpenH264 encoder

Revert of Add assembly for x86 to OpenH264 encoder (patchset #2 id:40001 of https://codereview.chromium.org/2645293002/ )

Reason for revert:
Causes linux_msan to flake about uninitialized value, this warning needs to be ignored before re-landing. Example: https://build.chromium.org/p/tryserver.webrtc/builders/linux_msan/builds/16972

The address of the uninitialized value is used when calling a function through a function pointer. The function writes to this value so it's safe, but linux_msan doesn't know that.

Original issue's description:
> Reland of Add assembly for x86 to OpenH264 encoder (patchset #1 id:1 of https://codereview.chromium.org/2651543002/ )
>
> Reason for revert:
> Reland
>
> Original issue's description:
> > Revert of Add assembly for x86 to OpenH264 encoder (patchset #5 id:80001 of https://codereview.chromium.org/2585733002/ )
> >
> > Reason for revert:
> > This broke Chrome OS builders:
> >
> > https://uberchromegw.corp.google.com/i/chromeos/builders/veyron_minnie-chrome-pfq/builds/669/steps/BuildPackages/logs/stdio
> >
> >
> > Original issue's description:
> > > Add assembly for x86 to OpenH264 encoder
> > >
> > > On Linux on a build workstation, these changes seem to give around 2.5x faster encoding (frame encode time in test goes from ~25 to ~9 ms)
> > >
> > > We do expect alerts from our performance bots when this lands.
> > >
> > > Credit: These build changes were written by brian@highfive.com aka bbaldino@gmail.com.
> > >
> > > BUG=600399
> > >
> > > Review-Url: https://codereview.chromium.org/2585733002
> > > Cr-Commit-Position: refs/heads/master@{#445033}
> > > Committed: https://chromium.googlesource.com/chromium/src/+/6d1501f500099ff3e25f92593e9efcb27d352252
> >
> > TBR=kthelgason@chromium.org,ehmaldonado@chromium.org,kthelgason@webrtc.org,hta@chromium.org
> > # Not skipping CQ checks because original CL landed more than 1 days ago.
> > BUG=600399
> >
> > Review-Url: https://codereview.chromium.org/2651543002
> > Cr-Commit-Position: refs/heads/master@{#445311}
> > Committed: https://chromium.googlesource.com/chromium/src/+/3f4ee1b009741853987773717ebc2f22c5f0c60b
>
>
> BUG=600399
>
> Review-Url: https://codereview.chromium.org/2645293002
> Cr-Commit-Position: refs/heads/master@{#445358}
> Committed: https://chromium.googlesource.com/chromium/src/+/2c39ea391c4df544e2f6162ae595083ce2d04e99

TBR=kthelgason@chromium.org,ehmaldonado@chromium.org,kjellander@chromium.org,haraken@chromium.org,hta@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=600399
Review-Url: https://codereview.chromium.org/2651643004
Cr-Commit-Position: refs/heads/master@{#445680}
Committed: https://chromium.googlesource.com/chromium/src/+/95cc5f514856c42df9287ca5f68e3b632e6b0312

[hbos_chromium, 2017-01-24 08:31:04]

The CQ bit was checked by hbos@chromium.org

[hbos_chromium, 2017-01-24 08:31:04]

Created Revert of Add assembly for x86 to OpenH264 encoder

[commit-bot: I haz the power, 2017-01-24 08:31:20]

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, 2017-01-24 08:31:52]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1485246664339470, "parent_rev":
"f105471106f4c821364165bdd991ce13196f5496", "commit_rev":
"95cc5f514856c42df9287ca5f68e3b632e6b0312"}

[commit-bot: I haz the power, 2017-01-24 08:32:28]

Description was changed from

==========
Revert of Add assembly for x86 to OpenH264 encoder (patchset #2 id:40001 of
https://codereview.chromium.org/2645293002/ )

Reason for revert:
Causes linux_msan to flake about uninitialized value, this warning needs to be
ignored before re-landing. Example:
https://build.chromium.org/p/tryserver.webrtc/builders/linux_msan/builds/16972

The address of the uninitialized value is used when calling a function through a
function pointer. The function writes to this value so it's safe, but linux_msan
doesn't know that.

Original issue's description:
> Reland of Add assembly for x86 to OpenH264 encoder (patchset #1 id:1 of
https://codereview.chromium.org/2651543002/ )
> 
> Reason for revert:
> Reland
> 
> Original issue's description:
> > Revert of Add assembly for x86 to OpenH264 encoder (patchset #5 id:80001 of
https://codereview.chromium.org/2585733002/ )
> > 
> > Reason for revert:
> > This broke Chrome OS builders:
> > 
> >
https://uberchromegw.corp.google.com/i/chromeos/builders/veyron_minnie-chrome...
> > 
> > 
> > Original issue's description:
> > > Add assembly for x86 to OpenH264 encoder
> > > 
> > > On Linux on a build workstation, these changes seem to give around 2.5x
faster encoding (frame encode time in test goes from ~25 to ~9 ms)
> > > 
> > > We do expect alerts from our performance bots when this lands.
> > > 
> > > Credit: These build changes were written by brian@highfive.com aka
bbaldino@gmail.com.
> > > 
> > > BUG=600399
> > > 
> > > Review-Url: https://codereview.chromium.org/2585733002
> > > Cr-Commit-Position: refs/heads/master@{#445033}
> > > Committed:
https://chromium.googlesource.com/chromium/src/+/6d1501f500099ff3e25f92593e9e...
> > 
> >
TBR=kthelgason@chromium.org,ehmaldonado@chromium.org,kthelgason@webrtc.org,ht...
> > # Not skipping CQ checks because original CL landed more than 1 days ago.
> > BUG=600399
> > 
> > Review-Url: https://codereview.chromium.org/2651543002
> > Cr-Commit-Position: refs/heads/master@{#445311}
> > Committed:
https://chromium.googlesource.com/chromium/src/+/3f4ee1b009741853987773717ebc...
> 
> 
> BUG=600399
> 
> Review-Url: https://codereview.chromium.org/2645293002
> Cr-Commit-Position: refs/heads/master@{#445358}
> Committed:
https://chromium.googlesource.com/chromium/src/+/2c39ea391c4df544e2f6162ae595...

TBR=kthelgason@chromium.org,ehmaldonado@chromium.org,kjellander@chromium.org,...
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=600399
==========

to

==========
Revert of Add assembly for x86 to OpenH264 encoder (patchset #2 id:40001 of
https://codereview.chromium.org/2645293002/ )

Reason for revert:
Causes linux_msan to flake about uninitialized value, this warning needs to be
ignored before re-landing. Example:
https://build.chromium.org/p/tryserver.webrtc/builders/linux_msan/builds/16972

The address of the uninitialized value is used when calling a function through a
function pointer. The function writes to this value so it's safe, but linux_msan
doesn't know that.

Original issue's description:
> Reland of Add assembly for x86 to OpenH264 encoder (patchset #1 id:1 of
https://codereview.chromium.org/2651543002/ )
>
> Reason for revert:
> Reland
>
> Original issue's description:
> > Revert of Add assembly for x86 to OpenH264 encoder (patchset #5 id:80001 of
https://codereview.chromium.org/2585733002/ )
> >
> > Reason for revert:
> > This broke Chrome OS builders:
> >
> >
https://uberchromegw.corp.google.com/i/chromeos/builders/veyron_minnie-chrome...
> >
> >
> > Original issue's description:
> > > Add assembly for x86 to OpenH264 encoder
> > >
> > > On Linux on a build workstation, these changes seem to give around 2.5x
faster encoding (frame encode time in test goes from ~25 to ~9 ms)
> > >
> > > We do expect alerts from our performance bots when this lands.
> > >
> > > Credit: These build changes were written by brian@highfive.com aka
bbaldino@gmail.com.
> > >
> > > BUG=600399
> > >
> > > Review-Url: https://codereview.chromium.org/2585733002
> > > Cr-Commit-Position: refs/heads/master@{#445033}
> > > Committed:
https://chromium.googlesource.com/chromium/src/+/6d1501f500099ff3e25f92593e9e...
> >
> >
TBR=kthelgason@chromium.org,ehmaldonado@chromium.org,kthelgason@webrtc.org,ht...
> > # Not skipping CQ checks because original CL landed more than 1 days ago.
> > BUG=600399
> >
> > Review-Url: https://codereview.chromium.org/2651543002
> > Cr-Commit-Position: refs/heads/master@{#445311}
> > Committed:
https://chromium.googlesource.com/chromium/src/+/3f4ee1b009741853987773717ebc...
>
>
> BUG=600399
>
> Review-Url: https://codereview.chromium.org/2645293002
> Cr-Commit-Position: refs/heads/master@{#445358}
> Committed:
https://chromium.googlesource.com/chromium/src/+/2c39ea391c4df544e2f6162ae595...

TBR=kthelgason@chromium.org,ehmaldonado@chromium.org,kjellander@chromium.org,...
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=600399

Review-Url: https://codereview.chromium.org/2651643004
Cr-Commit-Position: refs/heads/master@{#445680}
Committed:
https://chromium.googlesource.com/chromium/src/+/95cc5f514856c42df9287ca5f68e...
==========

[commit-bot: I haz the power, 2017-01-24 08:32:29]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/chromium/src/+/95cc5f514856c42df9287ca5f68e...

[hta - Chromium, 2017-01-25 13:52:47]

A revert of this CL (patchset #1 id:1) has been created in
https://codereview.chromium.org/2651183003/ by hta@chromium.org.

The reason for reverting is: Disabling assembly for MSAN build.

[note - do NOT review at this time. Not changed yet.].