Revert of Move content's shell connections to the IO thread

Revert of Move content's shell connections to the IO thread (patchset #14 id:320001 of https://codereview.chromium.org/2111353002/ )

Reason for revert:
http://crbug.com/627277

Original issue's description:
> Move content's service manager connections to the IO thread
>
> Moves all service manager connections in the content layer
> (connections owned by instances of MojoShellConnection and
> MojoChildConnection) to the IO thread in all process types.
> Note that instances of MojoShellConnection and
> MojoChildConnection may still be created and used on
> any thread.
>
> Additionally exposes a way for InterfaceRegistry and
> InterfaceProvider to forward to/from other instances
> so we can still have a corresponding instance of each
> on whatever thread owns the Mojo[Shell/Child]Connection
> object.
>
> This simplifies interface registration and acquisition
> on process hosts and ChildThreadImpls, and makes it possible
> for a future CL to introduce IO-thread service registration
> to avoid thread hops when binding incoming interface requests.
>
> BUG=623398, 612500
>
> Committed: https://crrev.com/439768f0aaaea83ffb7ce6c3ba4438804582c383
> Committed: https://crrev.com/0771b1d71a3295691f9ffaefdf50652bd58e01c4
> Cr-Original-Commit-Position: refs/heads/master@{#404228}
> Cr-Commit-Position: refs/heads/master@{#404556}

TBR=ben@chromium.org,piman@chromium.org
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=623398, 612500
NOTRY=true

Committed: https://crrev.com/d535a2c52c815ed792cba4ebbeb621816cd013b8
Cr-Commit-Position: refs/heads/master@{#404816}

[Ken Rockot(use gerrit already), 2016-07-11 22:58:47]

The CQ bit was checked by rockot@chromium.org

[Ken Rockot(use gerrit already), 2016-07-11 22:58:48]

Created Revert of Move content's shell connections to the IO thread

[commit-bot: I haz the power, 2016-07-11 22:59:37]

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, 2016-07-12 02:07:48]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2016-07-12 02:07:49]

Try jobs failed on following builders:
  linux_chromium_rel_ng on master.tryserver.chromium.linux (JOB_FAILED,
http://build.chromium.org/p/tryserver.chromium.linux/builders/linux_chromium_...)

[Ken Rockot(use gerrit already), 2016-07-12 05:11:38]

The CQ bit was checked by rockot@chromium.org

[commit-bot: I haz the power, 2016-07-12 05:12:19]

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, 2016-07-12 08:09:40]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2016-07-12 08:09:41]

Try jobs failed on following builders:
  linux_chromium_rel_ng on master.tryserver.chromium.linux (JOB_FAILED,
http://build.chromium.org/p/tryserver.chromium.linux/builders/linux_chromium_...)

[Ken Rockot(use gerrit already), 2016-07-12 13:22:11]

The CQ bit was checked by rockot@chromium.org

[commit-bot: I haz the power, 2016-07-12 13:22:55]

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, 2016-07-12 16:20:31]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2016-07-12 16:20:33]

Try jobs failed on following builders:
  linux_chromium_rel_ng on master.tryserver.chromium.linux (JOB_FAILED,
http://build.chromium.org/p/tryserver.chromium.linux/builders/linux_chromium_...)

[Ken Rockot(use gerrit already), 2016-07-12 17:47:11]

The CQ bit was checked by rockot@chromium.org

[commit-bot: I haz the power, 2016-07-12 17:48:58]

CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[Ken Rockot(use gerrit already), 2016-07-12 18:12:43]

Description was changed from

==========
Revert of Move content's shell connections to the IO thread (patchset #14
id:320001 of https://codereview.chromium.org/2111353002/ )

Reason for revert:
http://crbug.com/627277

Original issue's description:
> Move content's service manager connections to the IO thread
> 
> Moves all service manager connections in the content layer
> (connections owned by instances of MojoShellConnection and
> MojoChildConnection) to the IO thread in all process types.
> Note that instances of MojoShellConnection and
> MojoChildConnection may still be created and used on
> any thread.
> 
> Additionally exposes a way for InterfaceRegistry and
> InterfaceProvider to forward to/from other instances
> so we can still have a corresponding instance of each
> on whatever thread owns the Mojo[Shell/Child]Connection
> object.
> 
> This simplifies interface registration and acquisition
> on process hosts and ChildThreadImpls, and makes it possible
> for a future CL to introduce IO-thread service registration
> to avoid thread hops when binding incoming interface requests.
> 
> BUG=623398,612500
> 
> Committed: https://crrev.com/439768f0aaaea83ffb7ce6c3ba4438804582c383
> Committed: https://crrev.com/0771b1d71a3295691f9ffaefdf50652bd58e01c4
> Cr-Original-Commit-Position: refs/heads/master@{#404228}
> Cr-Commit-Position: refs/heads/master@{#404556}

TBR=ben@chromium.org,piman@chromium.org
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=623398,612500
==========

to

==========
Revert of Move content's shell connections to the IO thread (patchset #14
id:320001 of https://codereview.chromium.org/2111353002/ )

Reason for revert:
http://crbug.com/627277

Original issue's description:
> Move content's service manager connections to the IO thread
> 
> Moves all service manager connections in the content layer
> (connections owned by instances of MojoShellConnection and
> MojoChildConnection) to the IO thread in all process types.
> Note that instances of MojoShellConnection and
> MojoChildConnection may still be created and used on
> any thread.
> 
> Additionally exposes a way for InterfaceRegistry and
> InterfaceProvider to forward to/from other instances
> so we can still have a corresponding instance of each
> on whatever thread owns the Mojo[Shell/Child]Connection
> object.
> 
> This simplifies interface registration and acquisition
> on process hosts and ChildThreadImpls, and makes it possible
> for a future CL to introduce IO-thread service registration
> to avoid thread hops when binding incoming interface requests.
> 
> BUG=623398,612500
> 
> Committed: https://crrev.com/439768f0aaaea83ffb7ce6c3ba4438804582c383
> Committed: https://crrev.com/0771b1d71a3295691f9ffaefdf50652bd58e01c4
> Cr-Original-Commit-Position: refs/heads/master@{#404228}
> Cr-Commit-Position: refs/heads/master@{#404556}

TBR=ben@chromium.org,piman@chromium.org
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=623398,612500
NOTRY=true
==========

[Ken Rockot(use gerrit already), 2016-07-12 18:12:53]

The CQ bit was unchecked by rockot@chromium.org

[Ken Rockot(use gerrit already), 2016-07-12 18:12:54]

The CQ bit was checked by rockot@chromium.org

[commit-bot: I haz the power, 2016-07-12 18:13:32]

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, 2016-07-12 18:27:00]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-07-12 18:27:23]

CQ bit was unchecked.

[commit-bot: I haz the power, 2016-07-12 18:28:36]

Description was changed from

==========
Revert of Move content's shell connections to the IO thread (patchset #14
id:320001 of https://codereview.chromium.org/2111353002/ )

Reason for revert:
http://crbug.com/627277

Original issue's description:
> Move content's service manager connections to the IO thread
> 
> Moves all service manager connections in the content layer
> (connections owned by instances of MojoShellConnection and
> MojoChildConnection) to the IO thread in all process types.
> Note that instances of MojoShellConnection and
> MojoChildConnection may still be created and used on
> any thread.
> 
> Additionally exposes a way for InterfaceRegistry and
> InterfaceProvider to forward to/from other instances
> so we can still have a corresponding instance of each
> on whatever thread owns the Mojo[Shell/Child]Connection
> object.
> 
> This simplifies interface registration and acquisition
> on process hosts and ChildThreadImpls, and makes it possible
> for a future CL to introduce IO-thread service registration
> to avoid thread hops when binding incoming interface requests.
> 
> BUG=623398,612500
> 
> Committed: https://crrev.com/439768f0aaaea83ffb7ce6c3ba4438804582c383
> Committed: https://crrev.com/0771b1d71a3295691f9ffaefdf50652bd58e01c4
> Cr-Original-Commit-Position: refs/heads/master@{#404228}
> Cr-Commit-Position: refs/heads/master@{#404556}

TBR=ben@chromium.org,piman@chromium.org
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=623398,612500
NOTRY=true
==========

to

==========
Revert of Move content's shell connections to the IO thread (patchset #14
id:320001 of https://codereview.chromium.org/2111353002/ )

Reason for revert:
http://crbug.com/627277

Original issue's description:
> Move content's service manager connections to the IO thread
>
> Moves all service manager connections in the content layer
> (connections owned by instances of MojoShellConnection and
> MojoChildConnection) to the IO thread in all process types.
> Note that instances of MojoShellConnection and
> MojoChildConnection may still be created and used on
> any thread.
>
> Additionally exposes a way for InterfaceRegistry and
> InterfaceProvider to forward to/from other instances
> so we can still have a corresponding instance of each
> on whatever thread owns the Mojo[Shell/Child]Connection
> object.
>
> This simplifies interface registration and acquisition
> on process hosts and ChildThreadImpls, and makes it possible
> for a future CL to introduce IO-thread service registration
> to avoid thread hops when binding incoming interface requests.
>
> BUG=623398,612500
>
> Committed: https://crrev.com/439768f0aaaea83ffb7ce6c3ba4438804582c383
> Committed: https://crrev.com/0771b1d71a3295691f9ffaefdf50652bd58e01c4
> Cr-Original-Commit-Position: refs/heads/master@{#404228}
> Cr-Commit-Position: refs/heads/master@{#404556}

TBR=ben@chromium.org,piman@chromium.org
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=623398,612500
NOTRY=true

Committed: https://crrev.com/d535a2c52c815ed792cba4ebbeb621816cd013b8
Cr-Commit-Position: refs/heads/master@{#404816}
==========

[commit-bot: I haz the power, 2016-07-12 18:28:37]

Patchset 1 (id:??) landed as
https://crrev.com/d535a2c52c815ed792cba4ebbeb621816cd013b8
Cr-Commit-Position: refs/heads/master@{#404816}