Domain Reliability: Don't crash on shutdown with uploads pending

components/domain_reliability/monitor.cc

Index: components/domain_reliability/monitor.cc
diff --git a/components/domain_reliability/monitor.cc b/components/domain_reliability/monitor.cc
index 2da1d509dd17718e182f26708671c3a276199ec4..bd240dbb1169004a06359888edb9913779c29c08 100644
--- a/components/domain_reliability/monitor.cc
+++ b/components/domain_reliability/monitor.cc
@@ -155,6 +155,10 @@ void DomainReliabilityMonitor::InitURLRequestContext(
                                                 url_request_context_getter);
 }
 
+void DomainReliabilityMonitor::Shutdown() {
+  uploader_->Shutdown();

[mmenke, 2016/09/27 16:56:15]

If it can, we should have a test for it.  If it can't, I'd like to know why.

+}
+
 void DomainReliabilityMonitor::AddBakedInConfigs() {
   DCHECK(OnNetworkThread());
   DCHECK(moved_to_network_thread_);