Change report id to be a string (#21) r=mmentovai.



git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@22 4c0a9323-5329-0410-9bdc-e9ce6186880e
diff --git a/src/google/crash_report.h b/src/google/crash_report.h
index 96ba6f1..ef26b17 100644
--- a/src/google/crash_report.h
+++ b/src/google/crash_report.h
@@ -32,7 +32,7 @@
 struct CrashReport {
   // An optional id for the report.  This is supplied by the caller
   // and is not used by airbag.
-  u_int64_t report_id;
+  string report_id;
 
   // The time that the report was uploaded (milliseconds since the epoch)
   airbag_time_t report_time;