Make Alt-Svc: clear work with canonical hosts

net/http/http_server_properties_impl.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef NET_HTTP_HTTP_SERVER_PROPERTIES_IMPL_H_
 #define NET_HTTP_HTTP_SERVER_PROPERTIES_IMPL_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
@@ skipping 143 matching lines @@
   typedef std::map<AlternativeService, int> RecentlyBrokenAlternativeServices;
 
   // Return the iterator for |server|, or for its canonical host, or end.
   AlternativeServiceMap::const_iterator GetAlternateProtocolIterator(
       const url::SchemeHostPort& server);
 
   // Return the canonical host for |server|, or end if none exists.
   CanonicalHostMap::const_iterator GetCanonicalHost(
       const url::SchemeHostPort& server) const;
 
-  // Remove the cononical host for |server| if |server| is the value in the map.
+  // Remove the cononical host for |server|.
   void RemoveCanonicalHost(const url::SchemeHostPort& server);
   void ExpireBrokenAlternateProtocolMappings();
   void ScheduleBrokenAlternateProtocolMappingsExpiration();
 
   SpdyServersMap spdy_servers_map_;
   Http11ServerHostPortSet http11_servers_;
 
   AlternativeServiceMap alternative_service_map_;
   BrokenAlternativeServices broken_alternative_services_;
   // Class invariant:  Every alternative service in broken_alternative_services_
@@ skipping 15 matching lines @@
   size_t max_server_configs_stored_in_properties_;
 
   base::WeakPtrFactory<HttpServerPropertiesImpl> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(HttpServerPropertiesImpl);
 };
 
 }  // namespace net
 
 #endif  // NET_HTTP_HTTP_SERVER_PROPERTIES_IMPL_H_