Don't reuse the minidump descriptor for the crash signal pipe.

Don't reuse the minidump descriptor for the crash signal pipe.

This gets in the way of generating minidumps in WebView, and also
interacts badly with the DumpWithoutCrashingToFd implementation.

BUG=633979
Committed: https://crrev.com/cc607cc759e50fbb2dc2d0395952b6a02bfbe540
Cr-Commit-Position: refs/heads/master@{#412493}

[Tobias Sargeant, 2016-08-16 10:51:13]

The CQ bit was checked by tobiasjs@chromium.org to run a CQ dry run

[commit-bot: I haz the power, 2016-08-16 10:51:28]

Dry run: 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, 2016-08-16 11:38:15]

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

[commit-bot: I haz the power, 2016-08-16 11:38:16]

Dry run: This issue passed the CQ dry run.

[Tobias Sargeant, 2016-08-16 11:49:05]

tobiasjs@chromium.org changed reviewers:
+ rsesek@chromium.org, torne@chromium.org

[Torne, 2016-08-16 11:50:47]

lgtm

[Robert Sesek, 2016-08-16 19:26:24]

lgtm

[Tobias Sargeant, 2016-08-17 09:37:15]

The CQ bit was checked by tobiasjs@chromium.org

[Tobias Sargeant, 2016-08-17 09:37:15]

The patchset sent to the CQ was uploaded after l-g-t-m from torne@chromium.org
Link to the patchset: https://codereview.chromium.org/2245403002/#ps40001
(title: "amend comment; default implementation should return an invalid fd")

[commit-bot: I haz the power, 2016-08-17 09:37:28]

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, 2016-08-17 10:46:49]

Committed patchset #3 (id:40001)

[commit-bot: I haz the power, 2016-08-17 10:50:13]

Description was changed from

==========
Don't reuse the minidump descriptor for the crash signal pipe.

This gets in the way of generating minidumps in WebView, and also
interacts badly with the DumpWithoutCrashingToFd implementation.

BUG=633979
==========

to

==========
Don't reuse the minidump descriptor for the crash signal pipe.

This gets in the way of generating minidumps in WebView, and also
interacts badly with the DumpWithoutCrashingToFd implementation.

BUG=633979

Committed: https://crrev.com/cc607cc759e50fbb2dc2d0395952b6a02bfbe540
Cr-Commit-Position: refs/heads/master@{#412493}
==========

[commit-bot: I haz the power, 2016-08-17 10:50:14]

Patchset 3 (id:??) landed as
https://crrev.com/cc607cc759e50fbb2dc2d0395952b6a02bfbe540
Cr-Commit-Position: refs/heads/master@{#412493}