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

chrome/browser/profiles/profile_impl_io_data.h

Index: chrome/browser/profiles/profile_impl_io_data.h
diff --git a/chrome/browser/profiles/profile_impl_io_data.h b/chrome/browser/profiles/profile_impl_io_data.h
index dedb29afb065bc77cb2848b5da94c83877ad0e89..0a46ea7192c17399a57e7b55a5e3be7fb407ac5c 100644
--- a/chrome/browser/profiles/profile_impl_io_data.h
+++ b/chrome/browser/profiles/profile_impl_io_data.h
@@ -156,6 +156,8 @@ class ProfileImplIOData : public ProfileIOData {
     scoped_refptr<storage::SpecialStoragePolicy> special_storage_policy;
     std::unique_ptr<net::HttpServerPropertiesManager>
         http_server_properties_manager;
+    std::unique_ptr<domain_reliability::DomainReliabilityMonitor>
+        domain_reliability_monitor;
   };
 
   ProfileImplIOData();
@@ -219,7 +221,8 @@ class ProfileImplIOData : public ProfileIOData {
 
   mutable std::unique_ptr<net::URLRequestJobFactory> extensions_job_factory_;
 
-  mutable std::unique_ptr<domain_reliability::DomainReliabilityMonitor>
+  // Owned by ChromeNetworkDelegate (which is owned by |network_delegate_|).
+  mutable domain_reliability::DomainReliabilityMonitor*
       domain_reliability_monitor_;
 
   mutable std::unique_ptr<net::SdchOwner> sdch_policy_;