crash-reporter: send payload sizes to help diagnose corruption

crash_collector.h

Index: crash_collector.h
diff --git a/crash_collector.h b/crash_collector.h
index 730a8e76183c0ca32dd575f6b68515c99036ab4d..97bf0d6e52a8d7db588e3c61e4e9dc91be55b48b 100644
--- a/crash_collector.h
+++ b/crash_collector.h
@@ -89,7 +89,8 @@ class CrashCollector {
 
   // Write a file of metadata about crash.
   void WriteCrashMetaData(const FilePath &meta_path,
-                          const std::string &exec_name);
+                          const std::string &exec_name,
+                          const std::string &payload_path);
 
   CountCrashFunction count_crash_function_;
   IsFeedbackAllowedFunction is_feedback_allowed_function_;