android: set Java exception info via a callback

This avoids Crashpad needing to fetch this information in a signal
handler.

Bug: crashpad:30
Change-Id: Ib61172451b43de2799b35abeb95e3d3caebe5975
Reviewed-on: https://chromium-review.googlesource.com/1119373
Commit-Queue: Joshua Peraza <jperaza@chromium.org>
Reviewed-by: Yaron Friedman <yfriedman@chromium.org>
Reviewed-by: Robert Sesek <rsesek@chromium.org>
Cr-Commit-Position: refs/heads/master@{#573921}
7 files changed