Breakpad processor: Use unsigned constants in comparisons, to quiet compiler warnings.

This patch avoids comparisons between signed and unsigned values, as
warned about by G++ 4.4.1.

a=jimblandy, r=nealsid


git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@469 4c0a9323-5329-0410-9bdc-e9ce6186880e
3 files changed