Persist broken and recently-broken alt-svcs to prefs in HttpServerPropertiesManager

net/http/broken_alternative_services.h

Index: net/http/broken_alternative_services.h
diff --git a/net/http/broken_alternative_services.h b/net/http/broken_alternative_services.h
index cd1ab903c3f650c93a38ec5489f50923028c8361..df1990610cfbbd20dfdb3c6bd3d4b085fc5a2ed9 100644
--- a/net/http/broken_alternative_services.h
+++ b/net/http/broken_alternative_services.h
@@ -84,6 +84,10 @@ class NET_EXPORT_PRIVATE BrokenAlternativeServices {
   // expiration time.
   // All AlternativeServices in |broken_alternative_service_list| must exist in
   // |recently_broken_alternative_services|.
+  //
+  // If a broken/recently-broken alt svc that's being added is already stored,
+  // the stored expiration/broken-count for that alt svc will be overwritten
+  // with the new value.
   void SetBrokenAndRecentlyBrokenAlternativeServices(
       std::unique_ptr<BrokenAlternativeServiceList>
           broken_alternative_service_list,
@@ -100,12 +104,6 @@ class NET_EXPORT_PRIVATE BrokenAlternativeServices {
   // friendness is no longer required.
   friend class HttpServerPropertiesImplPeer;
 
-  struct AlternativeServiceHash {
-    size_t operator()(const net::AlternativeService& entry) const {
-      return entry.protocol ^ std::hash<std::string>()(entry.host) ^ entry.port;
-    }
-  };
-
   typedef std::unordered_map<AlternativeService,
                              BrokenAlternativeServiceList::iterator,
                              AlternativeServiceHash>