Roll src/breakpad/src/ 3be2dc8..481608d28.

https://chromium.googlesource.com/breakpad/breakpad/src.git/+log/3be2dc8..481608d28

Note: the DEPS shows a change from 7fef95a3 rather than 3be2dc8.
This is due to the breakpad history rewrite happened in
crbug.com/589297. 3be2dc8 is the commit-ish corresponding to 7fef95a3
in the rewritten history.

$ git log 7fef95a32..481608d28 --date=short --no-merges --format='%ad %ae %s'
2016-03-08 primiano Don't merge the mappings if their exec bit are different.
2016-03-03 domlaskowski Add an optional root prefix to Linux dumpers
2016-02-26 mmandlis Handle multiple microdumps in system log.
2016-02-18 mmandlis Support processing microdumps for x86 architecture.
2016-02-17 birunthan Try loading msdiaNNN.dll if CoCreateInstance(CLSID_DiaSource) fails
2016-02-17 ted Fix buffer overrun in MinidumpModule::debug_identifier with MDCVInfoELF
2016-02-16 ivanpe Fixing a flaky Linux exploitability unittest.
2016-02-12 ted Ensure Linux minidump writer flushes minidump header early.
2016-02-11 mmandlis Parse additional line introduced in the microdump format and containing the GPU infromation in the following format: G GL_VERSION|GL_VENDOR|GL_RENDERER.
2016-02-10 thestig Revert "Added a switch to dump minidump modules in minidump_stackwalk."
2016-02-10 ted Change MDCVInfoELF into something usable.

BUG=585534

Review URL: https://codereview.chromium.org/1773943003

Cr-Commit-Position: refs/heads/master@{#380391}
(cherry picked from commit d2f3d52)

Review URL: https://codereview.chromium.org/1796773004 .

Cr-Commit-Position: refs/branch-heads/2661@{crosswalk-project#217}
Cr-Branched-From: ef6f6ae-refs/heads/master@{#378081}

DEPS

@@ -110,7 +110,7 @@ allowed_hosts = [
 
 deps = {
   'src/breakpad/src':
-   Var('chromium_git') + '/breakpad/breakpad/src.git' + '@' + '7fef95a322beedaddcca627e1a88b54411f586da',
+   Var('chromium_git') + '/breakpad/breakpad/src.git' + '@' + '481608d284106df9400d447e95574799670cabaf',
 
   'src/buildtools':
    Var('chromium_git') + '/chromium/buildtools.git' + '@' +  Var('buildtools_revision'),