Revert of A simple, practically zero cost fallback crash handler for Crashpad handler process.

Revert of A simple, practically zero cost fallback crash handler for Crashpad handler process. (patchset #14 id:260001 of https://codereview.chromium.org/2596463002/ )

Reason for revert:
Sorry, it looks like the new patch also has a build failure. See crbug 679920. (I'm not 100% sure, this is my best guess, apologies if it turns out incorrect).

Original issue's description:
> A simple, practically zero cost fallback crash handler for Crashpad handler process.
> 
> This implements a fallback crash handler launcher. The launcher will be instantiated in the Crashpad handler process, where it pre-computes a command line to be launched on crash. This will be triggered off the UEF, under some form of single-instance locking.
> 
> BUG=678959
> 
> Review-Url: https://codereview.chromium.org/2596463002
> Cr-Original-Commit-Position: refs/heads/master@{#442596}
> Committed: https://chromium.googlesource.com/chromium/src/+/d4e43bb5146c7a59123ff5f3b6e853d8e8c29130
> Review-Url: https://codereview.chromium.org/2596463002
> Cr-Commit-Position: refs/heads/master@{#442698}
> Committed: https://chromium.googlesource.com/chromium/src/+/f87fdaa12b09ff286d873e7a3ea459507d7adb83

TBR=scottmg@chromium.org,siggi@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=678959
Review-Url: https://codereview.chromium.org/2620213002
Cr-Commit-Position: refs/heads/master@{#442742}
Committed: https://chromium.googlesource.com/chromium/src/+/a37e7afabb6be7d7a12667fb29d9f74556589abf

[dschuyler, 2017-01-11 00:27:58]

The CQ bit was checked by dschuyler@chromium.org

[dschuyler, 2017-01-11 00:27:59]

Created Revert of A simple, practically zero cost fallback crash handler for
Crashpad handler process.

[commit-bot: I haz the power, 2017-01-11 00:28:34]

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, 2017-01-11 00:29:16]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1484094478788330, "parent_rev":
"0aafa24f1ad6b4331bdb65db12ffc1842ba69b1d", "commit_rev":
"a37e7afabb6be7d7a12667fb29d9f74556589abf"}

[commit-bot: I haz the power, 2017-01-11 00:29:47]

Description was changed from

==========
Revert of A simple, practically zero cost fallback crash handler for Crashpad
handler process. (patchset #14 id:260001 of
https://codereview.chromium.org/2596463002/ )

Reason for revert:
Sorry, it looks like the new patch also has a build failure. See crbug 679920.
(I'm not 100% sure, this is my best guess, apologies if it turns out incorrect).

Original issue's description:
> A simple, practically zero cost fallback crash handler for Crashpad handler
process.
> 
> This implements a fallback crash handler launcher. The launcher will be
instantiated in the Crashpad handler process, where it pre-computes a command
line to be launched on crash. This will be triggered off the UEF, under some
form of single-instance locking.
> 
> BUG=678959
> 
> Review-Url: https://codereview.chromium.org/2596463002
> Cr-Original-Commit-Position: refs/heads/master@{#442596}
> Committed:
https://chromium.googlesource.com/chromium/src/+/d4e43bb5146c7a59123ff5f3b6e8...
> Review-Url: https://codereview.chromium.org/2596463002
> Cr-Commit-Position: refs/heads/master@{#442698}
> Committed:
https://chromium.googlesource.com/chromium/src/+/f87fdaa12b09ff286d873e7a3ea4...

TBR=scottmg@chromium.org,siggi@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=678959
==========

to

==========
Revert of A simple, practically zero cost fallback crash handler for Crashpad
handler process. (patchset #14 id:260001 of
https://codereview.chromium.org/2596463002/ )

Reason for revert:
Sorry, it looks like the new patch also has a build failure. See crbug 679920.
(I'm not 100% sure, this is my best guess, apologies if it turns out incorrect).

Original issue's description:
> A simple, practically zero cost fallback crash handler for Crashpad handler
process.
> 
> This implements a fallback crash handler launcher. The launcher will be
instantiated in the Crashpad handler process, where it pre-computes a command
line to be launched on crash. This will be triggered off the UEF, under some
form of single-instance locking.
> 
> BUG=678959
> 
> Review-Url: https://codereview.chromium.org/2596463002
> Cr-Original-Commit-Position: refs/heads/master@{#442596}
> Committed:
https://chromium.googlesource.com/chromium/src/+/d4e43bb5146c7a59123ff5f3b6e8...
> Review-Url: https://codereview.chromium.org/2596463002
> Cr-Commit-Position: refs/heads/master@{#442698}
> Committed:
https://chromium.googlesource.com/chromium/src/+/f87fdaa12b09ff286d873e7a3ea4...

TBR=scottmg@chromium.org,siggi@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=678959

Review-Url: https://codereview.chromium.org/2620213002
Cr-Commit-Position: refs/heads/master@{#442742}
Committed:
https://chromium.googlesource.com/chromium/src/+/a37e7afabb6be7d7a12667fb29d9...
==========

[commit-bot: I haz the power, 2017-01-11 00:29:49]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/chromium/src/+/a37e7afabb6be7d7a12667fb29d9...