[ObjC ARC] Converts ios/chrome/browser/crash_report to ARC

[ObjC ARC] Converts ios/chrome/browser/crash_report to ARC

Notable changes:
* Removed dispatch_release calls, since GCD objects are managed with
ARC now.

BUG=665024
Committed: https://crrev.com/fd57e705d19544ea6cffba38d9b24058817e2d78
Cr-Commit-Position: refs/heads/master@{#432456}

[stkhapugin, 2016-11-15 14:04:30]

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

[commit-bot: I haz the power, 2016-11-15 14:04:35]

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

[stkhapugin, 2016-11-15 14:39:07]

stkhapugin@chromium.org changed reviewers:
+ noyau@chromium.org

[stkhapugin, 2016-11-15 14:39:08]

PTAL. This issue passed a downstream trybot.

[commit-bot: I haz the power, 2016-11-15 15:48:23]

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

[commit-bot: I haz the power, 2016-11-15 15:48:24]

Dry run: Try jobs failed on following builders:
  android_n5x_swarming_rel on master.tryserver.chromium.android (JOB_FAILED,
https://build.chromium.org/p/tryserver.chromium.android/builders/android_n5x_...)

[noyau (Ping after 24h), 2016-11-16 10:06:54]

The CQ bit was checked by noyau@chromium.org

[noyau (Ping after 24h), 2016-11-16 10:06:54]

lgtm

[commit-bot: I haz the power, 2016-11-16 10:07:09]

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, 2016-11-16 11:04:33]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-11-16 11:06:58]

Description was changed from

==========
[ObjC ARC] Converts ios/chrome/browser/crash_report to ARC

Notable changes:
* Removed dispatch_release calls, since GCD objects are managed with
ARC now.

BUG=665024
==========

to

==========
[ObjC ARC] Converts ios/chrome/browser/crash_report to ARC

Notable changes:
* Removed dispatch_release calls, since GCD objects are managed with
ARC now.

BUG=665024

Committed: https://crrev.com/fd57e705d19544ea6cffba38d9b24058817e2d78
Cr-Commit-Position: refs/heads/master@{#432456}
==========

[commit-bot: I haz the power, 2016-11-16 11:06:59]

Patchset 1 (id:??) landed as
https://crrev.com/fd57e705d19544ea6cffba38d9b24058817e2d78
Cr-Commit-Position: refs/heads/master@{#432456}