Revert of Have each SandboxedProcessLauncherDelegate maintain a zygote.

Revert of Have each SandboxedProcessLauncherDelegate maintain a zygote. (patchset #15 id:440001 of https://codereview.chromium.org/1532423003/ )

Reason for revert:
Revert "Have each SandboxedProcessLauncherDelegate maintain a zygote."

This reverts commit 3c1e16b490255119b6f70f94d1716645e897b185.
This broke the Site Isolation FYI bot failure:
https://build.chromium.org/p/chromium.fyi/builders/Site%20Isolation%20Linux/builds/7700

To re-land the CL, that failure needs to be diagnosed and corrected.

Original issue's description:
> Have each SandboxedProcessLauncherDelegate maintain a zygote.
>
> To improve component updates of PPAPI plugins, Chrome needs multiple zygotes.
> This will allow the PPAPI zygote to be recreated when a plugin is updated.
> This CL allows Chrome to maintain a zygote for each process type by having
> each SandboxedProcessLauncherDelegate maintain a class which can communicate
> with its respective zygote. This CL will be followed up with work to allow
> customization of zygotes, which will give Chrome the improve component update
> experience.
>
> BUG=569191
>
> Committed: https://crrev.com/3c1e16b490255119b6f70f94d1716645e897b185
> Cr-Commit-Position: refs/heads/master@{#370488}

TBR=mdempsky@chromium.org,thestig@chromium.org,avi@chromium.org,mseaborn@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=569191
Committed: https://crrev.com/72832708f883085937e38d257b5954157fdca7c5
Cr-Commit-Position: refs/heads/master@{#370771}

[Greg K, 2016-01-21 20:26:46]

Created Revert of Have each SandboxedProcessLauncherDelegate maintain a zygote.

[commit-bot: I haz the power, 2016-01-21 20:27:17]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1617213002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1617213002/1

[mdempsky, 2016-01-21 20:27:40]

lgtm

[commit-bot: I haz the power, 2016-01-21 20:29:20]

Description was changed from

==========
Revert of Have each SandboxedProcessLauncherDelegate maintain a zygote.
(patchset #15 id:440001 of https://codereview.chromium.org/1532423003/ )

Reason for revert:
Revert "Have each SandboxedProcessLauncherDelegate maintain a zygote."

This reverts commit 3c1e16b490255119b6f70f94d1716645e897b185.
This broke the Site Isolation FYI bot failure:
https://build.chromium.org/p/chromium.fyi/builders/Site%20Isolation%20Linux/b...

To re-land the CL, that failure needs to be diagnosed and corrected.

Original issue's description:
> Have each SandboxedProcessLauncherDelegate maintain a zygote.
> 
> To improve component updates of PPAPI plugins, Chrome needs multiple zygotes.
> This will allow the PPAPI zygote to be recreated when a plugin is updated.
> This CL allows Chrome to maintain a zygote for each process type by having
> each SandboxedProcessLauncherDelegate maintain a class which can communicate
> with its respective zygote. This CL will be followed up with work to allow
> customization of zygotes, which will give Chrome the improve component update
> experience.
> 
> BUG=569191
> 
> Committed: https://crrev.com/3c1e16b490255119b6f70f94d1716645e897b185
> Cr-Commit-Position: refs/heads/master@{#370488}

TBR=mdempsky@chromium.org,thestig@chromium.org,avi@chromium.org,mseaborn@chro...
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=569191
==========

to

==========
Revert of Have each SandboxedProcessLauncherDelegate maintain a zygote.
(patchset #15 id:440001 of https://codereview.chromium.org/1532423003/ )

Reason for revert:
Revert "Have each SandboxedProcessLauncherDelegate maintain a zygote."

This reverts commit 3c1e16b490255119b6f70f94d1716645e897b185.
This broke the Site Isolation FYI bot failure:
https://build.chromium.org/p/chromium.fyi/builders/Site%20Isolation%20Linux/b...

To re-land the CL, that failure needs to be diagnosed and corrected.

Original issue's description:
> Have each SandboxedProcessLauncherDelegate maintain a zygote.
> 
> To improve component updates of PPAPI plugins, Chrome needs multiple zygotes.
> This will allow the PPAPI zygote to be recreated when a plugin is updated.
> This CL allows Chrome to maintain a zygote for each process type by having
> each SandboxedProcessLauncherDelegate maintain a class which can communicate
> with its respective zygote. This CL will be followed up with work to allow
> customization of zygotes, which will give Chrome the improve component update
> experience.
> 
> BUG=569191
> 
> Committed: https://crrev.com/3c1e16b490255119b6f70f94d1716645e897b185
> Cr-Commit-Position: refs/heads/master@{#370488}

TBR=mdempsky@chromium.org,thestig@chromium.org,avi@chromium.org,mseaborn@chro...
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=569191
==========

[commit-bot: I haz the power, 2016-01-21 20:29:20]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-01-21 20:30:20]

Description was changed from

==========
Revert of Have each SandboxedProcessLauncherDelegate maintain a zygote.
(patchset #15 id:440001 of https://codereview.chromium.org/1532423003/ )

Reason for revert:
Revert "Have each SandboxedProcessLauncherDelegate maintain a zygote."

This reverts commit 3c1e16b490255119b6f70f94d1716645e897b185.
This broke the Site Isolation FYI bot failure:
https://build.chromium.org/p/chromium.fyi/builders/Site%20Isolation%20Linux/b...

To re-land the CL, that failure needs to be diagnosed and corrected.

Original issue's description:
> Have each SandboxedProcessLauncherDelegate maintain a zygote.
> 
> To improve component updates of PPAPI plugins, Chrome needs multiple zygotes.
> This will allow the PPAPI zygote to be recreated when a plugin is updated.
> This CL allows Chrome to maintain a zygote for each process type by having
> each SandboxedProcessLauncherDelegate maintain a class which can communicate
> with its respective zygote. This CL will be followed up with work to allow
> customization of zygotes, which will give Chrome the improve component update
> experience.
> 
> BUG=569191
> 
> Committed: https://crrev.com/3c1e16b490255119b6f70f94d1716645e897b185
> Cr-Commit-Position: refs/heads/master@{#370488}

TBR=mdempsky@chromium.org,thestig@chromium.org,avi@chromium.org,mseaborn@chro...
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=569191
==========

to

==========
Revert of Have each SandboxedProcessLauncherDelegate maintain a zygote.
(patchset #15 id:440001 of https://codereview.chromium.org/1532423003/ )

Reason for revert:
Revert "Have each SandboxedProcessLauncherDelegate maintain a zygote."

This reverts commit 3c1e16b490255119b6f70f94d1716645e897b185.
This broke the Site Isolation FYI bot failure:
https://build.chromium.org/p/chromium.fyi/builders/Site%20Isolation%20Linux/b...

To re-land the CL, that failure needs to be diagnosed and corrected.

Original issue's description:
> Have each SandboxedProcessLauncherDelegate maintain a zygote.
>
> To improve component updates of PPAPI plugins, Chrome needs multiple zygotes.
> This will allow the PPAPI zygote to be recreated when a plugin is updated.
> This CL allows Chrome to maintain a zygote for each process type by having
> each SandboxedProcessLauncherDelegate maintain a class which can communicate
> with its respective zygote. This CL will be followed up with work to allow
> customization of zygotes, which will give Chrome the improve component update
> experience.
>
> BUG=569191
>
> Committed: https://crrev.com/3c1e16b490255119b6f70f94d1716645e897b185
> Cr-Commit-Position: refs/heads/master@{#370488}

TBR=mdempsky@chromium.org,thestig@chromium.org,avi@chromium.org,mseaborn@chro...
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=569191

Committed: https://crrev.com/72832708f883085937e38d257b5954157fdca7c5
Cr-Commit-Position: refs/heads/master@{#370771}
==========

[commit-bot: I haz the power, 2016-01-21 20:30:21]

Patchset 1 (id:??) landed as
https://crrev.com/72832708f883085937e38d257b5954157fdca7c5
Cr-Commit-Position: refs/heads/master@{#370771}