autoreconf -f -i

git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1252 4c0a9323-5329-0410-9bdc-e9ce6186880e
Conditionalize use of <cpuid.h> header

This header only exists for x86 environments, but was included
unconditionally.  That broke the builds for all non-x86 environments.

R=mark@chromium.org
BUG=

Review URL: https://breakpad.appspot.com/824003

git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1253 4c0a9323-5329-0410-9bdc-e9ce6186880e
Address additional comments from r1248. Fix the register to check and fix some style nits.

BUG=495
R=mark@chromium.org

Review URL: https://breakpad.appspot.com/834003

git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1254 4c0a9323-5329-0410-9bdc-e9ce6186880e