crash-reporter: send payload sizes to help diagnose corruption

Change-Id: Ia68990138ebcc3dd6d644fe30d0721dde41c567e

BUG=6299
TEST=UserCrash, CrashSender, KernelCrash

Review URL: http://codereview.chromium.org/3820004
5 files changed
tree: 9b84865708774c3ed287bf37ba1b35ac39e545ce
  1. crash_reporter/