Roll src/breakpad/src a513e85:3518935 (svn 1384:1387)

Roll src/breakpad/src a513e85:3518935 (svn 1384:1387)

r1385: Linux: Call memset() in a couple places in ExceptionHandler.
r1386: IWYU in minidump_writer.cc to fix building with libc++.
r1387: Fix some nits raised by Timur for r1385.

Also remove Valgrind suppression Breakpad r1385 fixed.

BUG=332335
Committed: https://crrev.com/33169d9f2497a79fdde3ae51c5aa7266032526c7
Cr-Commit-Position: refs/heads/master@{#296497}

[Lei Zhang, 2014-09-24 19:02:51]

thestig@chromium.org changed reviewers:
+ thakis@chromium.org

[Nico, 2014-09-24 19:02:53]

lgtm

[Lei Zhang, 2014-09-24 19:03:55]

The CQ bit was checked by thestig@chromium.org

[commit-bot: I haz the power, 2014-09-24 19:05:24]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/601823003/1

[commit-bot: I haz the power, 2014-09-24 20:06:10]

Committed patchset #1 (id:1) as 42808bcc829fe2388d78db77eab59a4649c6399c

[commit-bot: I haz the power, 2014-09-24 20:06:53]

Patchset 1 (id:??) landed as
https://crrev.com/33169d9f2497a79fdde3ae51c5aa7266032526c7
Cr-Commit-Position: refs/heads/master@{#296497}