Replace handles that the handle closer closes with dummy Events.

components/crash/app/breakpad_win.cc

Index: components/crash/app/breakpad_win.cc
diff --git a/components/crash/app/breakpad_win.cc b/components/crash/app/breakpad_win.cc
index 1c3af66fd8013ad7de4abbfe2ffdd8e91ede3f0b..fb62b701ae4fe9eb731646ee0590a0a0418b072b 100644
--- a/components/crash/app/breakpad_win.cc
+++ b/components/crash/app/breakpad_win.cc
@@ -616,6 +616,17 @@ void InitCrashReporter(const std::string& process_type_switch) {
   }
 }
 
+void ShutdownCrashReporter() {
+  if (g_breakpad) {
+    delete g_breakpad;
+    g_breakpad = NULL;
+  }
+  if (g_dumphandler_no_crash) {
+    delete g_dumphandler_no_crash;
+    g_dumphandler_no_crash = NULL;
+  }
+}
+
 // If the user has disabled crash reporting uploads and restarted Chrome, the
 // restarted instance will still contain the pipe environment variable, which
 // will allow the restarted process to still upload crash reports. This function