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 bb7070509681247c68a226986f4da9590bd1937a..442a2832c69e5c42aff8c4a342c93fe195d1124d 100644
--- a/chrome/browser/profiles/profile_impl_io_data.h
+++ b/chrome/browser/profiles/profile_impl_io_data.h
@@ -161,6 +161,8 @@ class ProfileImplIOData : public ProfileIOData {
     base::FilePath extensions_cookie_path;
     content::CookieStoreConfig::SessionCookieMode session_cookie_mode;
     scoped_refptr<storage::SpecialStoragePolicy> special_storage_policy;
+    std::unique_ptr<domain_reliability::DomainReliabilityMonitor>
+        domain_reliability_monitor;
   };
 
   ProfileImplIOData();
@@ -233,7 +235,8 @@ class ProfileImplIOData : public ProfileIOData {
   mutable std::unique_ptr<net::URLRequestJobFactory> main_job_factory_;
   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::SdchManager> sdch_manager_;