Revert of Revive experiment to isolate shell operations.

Revert of Revive experiment to isolate shell operations. (patchset #5 id:100001 of https://codereview.chromium.org/2122303002/ )

Reason for revert:
Possibly broke compile on"Win8 GYP (dbg)"

Original issue's description:
> Isolate shell operations to the utility process.
>
> Shell operations can cause 3rd-party shell extensions to be
> loaded into the caller's process. The utility process protects the browser process from potential instability.
>
> Also convert the IPC mechanism to Mojo.
>
> BUG=73098
>
> Committed: https://crrev.com/b7faec8d94ef286d2b92144c2836b170c2cdea95
> Cr-Commit-Position: refs/heads/master@{#405270}

TBR=sky@chromium.org,dcheng@chromium.org,wfh@chromium.org,pmonette@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=73098
Committed: https://crrev.com/ca43fdc99555aee51bfa608eb49622a26f8583f0
Cr-Commit-Position: refs/heads/master@{#405283}

[nektarios, 2016-07-13 21:10:22]

The CQ bit was checked by nektar@chromium.org

[nektarios, 2016-07-13 21:10:22]

Created Revert of Revive experiment to isolate shell operations.

[commit-bot: I haz the power, 2016-07-13 21:11:20]

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, 2016-07-13 21:12:40]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-07-13 21:13:01]

CQ bit was unchecked.

[commit-bot: I haz the power, 2016-07-13 21:15:01]

Description was changed from

==========
Revert of Revive experiment to isolate shell operations. (patchset #5 id:100001
of https://codereview.chromium.org/2122303002/ )

Reason for revert:
Possibly broke compile on"Win8 GYP (dbg)"

Original issue's description:
> Isolate shell operations to the utility process.
> 
> Shell operations can cause 3rd-party shell extensions to be
> loaded into the caller's process. The utility process protects the browser
process from potential instability.
> 
> Also convert the IPC mechanism to Mojo.
> 
> BUG=73098
> 
> Committed: https://crrev.com/b7faec8d94ef286d2b92144c2836b170c2cdea95
> Cr-Commit-Position: refs/heads/master@{#405270}

TBR=sky@chromium.org,dcheng@chromium.org,wfh@chromium.org,pmonette@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=73098
==========

to

==========
Revert of Revive experiment to isolate shell operations. (patchset #5 id:100001
of https://codereview.chromium.org/2122303002/ )

Reason for revert:
Possibly broke compile on"Win8 GYP (dbg)"

Original issue's description:
> Isolate shell operations to the utility process.
>
> Shell operations can cause 3rd-party shell extensions to be
> loaded into the caller's process. The utility process protects the browser
process from potential instability.
>
> Also convert the IPC mechanism to Mojo.
>
> BUG=73098
>
> Committed: https://crrev.com/b7faec8d94ef286d2b92144c2836b170c2cdea95
> Cr-Commit-Position: refs/heads/master@{#405270}

TBR=sky@chromium.org,dcheng@chromium.org,wfh@chromium.org,pmonette@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=73098

Committed: https://crrev.com/ca43fdc99555aee51bfa608eb49622a26f8583f0
Cr-Commit-Position: refs/heads/master@{#405283}
==========

[commit-bot: I haz the power, 2016-07-13 21:15:03]

Patchset 1 (id:??) landed as
https://crrev.com/ca43fdc99555aee51bfa608eb49622a26f8583f0
Cr-Commit-Position: refs/heads/master@{#405283}