Revert of Cleanup DataReductionProxy (DRP) Brotli code

Revert of Cleanup DataReductionProxy (DRP) Brotli code (patchset #3 id:140001 of https://codereview.chromium.org/2571993002/ )

Reason for revert:
Reverting because it's hitting a DCHECK on top of tree (android). It's going to make it hard for people to work.

Filed a bug at https://bugs.chromium.org/p/chromium/issues/detail?id=674918

Original issue's description:
> Cleanup DataReductionProxy (DRP) Brotli code
>
> Add thread checkers to request options class.
>
> Force the generation of the chrome-proxy header, and use it later when
> generating the MockWrite for the sockets in tests.
>
> CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.android:android_cronet_tester
>
> BUG=634061
>
> Committed: https://crrev.com/1d20801e2b126cfec1d66cb78c05082d0f90b3ba
> Cr-Commit-Position: refs/heads/master@{#438978}

TBR=ryansturm@chromium.org,tbansal@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=634061
Committed: https://crrev.com/b7e7022d9679740ace361f373f754a506f9e72e1
Cr-Commit-Position: refs/heads/master@{#439103}

[Mathieu, 2016-12-16 14:53:26]

The CQ bit was checked by mathp@chromium.org

[Mathieu, 2016-12-16 14:53:26]

Created Revert of Cleanup DataReductionProxy (DRP) Brotli code

[commit-bot: I haz the power, 2016-12-16 14:53:36]

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, 2016-12-16 14:54:20]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1481900006098350, "parent_rev":
"36e1d2bf1917656f9b3028d351d406f3ae3d5101", "commit_rev":
"6c7f97cce6f9219f76e5793fd3530184dbc82092"}

[commit-bot: I haz the power, 2016-12-16 14:54:46]

Description was changed from

==========
Revert of Cleanup DataReductionProxy (DRP) Brotli code (patchset #3 id:140001 of
https://codereview.chromium.org/2571993002/ )

Reason for revert:
Reverting because it's hitting a DCHECK on top of tree (android). It's going to
make it hard for people to work.

Filed a bug at https://bugs.chromium.org/p/chromium/issues/detail?id=674918

Original issue's description:
> Cleanup DataReductionProxy (DRP) Brotli code
> 
> Add thread checkers to request options class.
> 
> Force the generation of the chrome-proxy header, and use it later when
> generating the MockWrite for the sockets in tests.
> 
> CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.android:android_cronet_tester
> 
> BUG=634061
> 
> Committed: https://crrev.com/1d20801e2b126cfec1d66cb78c05082d0f90b3ba
> Cr-Commit-Position: refs/heads/master@{#438978}

TBR=ryansturm@chromium.org,tbansal@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=634061
==========

to

==========
Revert of Cleanup DataReductionProxy (DRP) Brotli code (patchset #3 id:140001 of
https://codereview.chromium.org/2571993002/ )

Reason for revert:
Reverting because it's hitting a DCHECK on top of tree (android). It's going to
make it hard for people to work.

Filed a bug at https://bugs.chromium.org/p/chromium/issues/detail?id=674918

Original issue's description:
> Cleanup DataReductionProxy (DRP) Brotli code
> 
> Add thread checkers to request options class.
> 
> Force the generation of the chrome-proxy header, and use it later when
> generating the MockWrite for the sockets in tests.
> 
> CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.android:android_cronet_tester
> 
> BUG=634061
> 
> Committed: https://crrev.com/1d20801e2b126cfec1d66cb78c05082d0f90b3ba
> Cr-Commit-Position: refs/heads/master@{#438978}

TBR=ryansturm@chromium.org,tbansal@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=634061

Review-Url: https://codereview.chromium.org/2577413002
==========

[commit-bot: I haz the power, 2016-12-16 14:54:49]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-12-16 14:57:02]

Description was changed from

==========
Revert of Cleanup DataReductionProxy (DRP) Brotli code (patchset #3 id:140001 of
https://codereview.chromium.org/2571993002/ )

Reason for revert:
Reverting because it's hitting a DCHECK on top of tree (android). It's going to
make it hard for people to work.

Filed a bug at https://bugs.chromium.org/p/chromium/issues/detail?id=674918

Original issue's description:
> Cleanup DataReductionProxy (DRP) Brotli code
> 
> Add thread checkers to request options class.
> 
> Force the generation of the chrome-proxy header, and use it later when
> generating the MockWrite for the sockets in tests.
> 
> CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.android:android_cronet_tester
> 
> BUG=634061
> 
> Committed: https://crrev.com/1d20801e2b126cfec1d66cb78c05082d0f90b3ba
> Cr-Commit-Position: refs/heads/master@{#438978}

TBR=ryansturm@chromium.org,tbansal@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=634061

Review-Url: https://codereview.chromium.org/2577413002
==========

to

==========
Revert of Cleanup DataReductionProxy (DRP) Brotli code (patchset #3 id:140001 of
https://codereview.chromium.org/2571993002/ )

Reason for revert:
Reverting because it's hitting a DCHECK on top of tree (android). It's going to
make it hard for people to work.

Filed a bug at https://bugs.chromium.org/p/chromium/issues/detail?id=674918

Original issue's description:
> Cleanup DataReductionProxy (DRP) Brotli code
>
> Add thread checkers to request options class.
>
> Force the generation of the chrome-proxy header, and use it later when
> generating the MockWrite for the sockets in tests.
>
> CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.android:android_cronet_tester
>
> BUG=634061
>
> Committed: https://crrev.com/1d20801e2b126cfec1d66cb78c05082d0f90b3ba
> Cr-Commit-Position: refs/heads/master@{#438978}

TBR=ryansturm@chromium.org,tbansal@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=634061

Committed: https://crrev.com/b7e7022d9679740ace361f373f754a506f9e72e1
Cr-Commit-Position: refs/heads/master@{#439103}
==========

[commit-bot: I haz the power, 2016-12-16 14:57:02]

Patchset 1 (id:??) landed as
https://crrev.com/b7e7022d9679740ace361f373f754a506f9e72e1
Cr-Commit-Position: refs/heads/master@{#439103}