Breakpad: Avoid using the C++ <cfoo> headers.

This patch avoids unnecessary use of the <cfoo> headers in files that don't
actually use the identifiers they declare in the std:: namespace.

It also changes some files to better conform with the "Names and Order of
Includes" rules in the Google C++ Style Guide.

A=jimb R=mark

git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@619 4c0a9323-5329-0410-9bdc-e9ce6186880e

src/common/module.cc

@@ -31,11 +31,11 @@
 
 // module.cc: Implement google_breakpad::Module.  See module.h.
 
-#include <cerrno>
-#include <cstring>
-
 #include "common/module.h"
 
+#include <errno.h>
+#include <string.h>
+
 namespace google_breakpad {
 
 Module::Module(const string &name, const string &os,