crash-reporter: convert number to int before calling abs()

BUG=chromium:347721
TEST=emerge-x86-generic crash-reporter passes.

Change-Id: Id37528c44d5c318b917932ebc755eb6b4ca01e8f
Reviewed-on: https://chromium-review.googlesource.com/188212
Reviewed-by: Mike Frysinger <vapier@chromium.org>
Commit-Queue: Yunlian Jiang <yunlian@chromium.org>
Tested-by: Yunlian Jiang <yunlian@chromium.org>
1 file changed
tree: 8695e6527924f06329ba4e43f8b53bd833edc866
  1. crash_reporter/