[SPDY] Remove references to obsolete SPDY versions SPDY/1 and SPDY/2.1

chrome/browser/net/http_server_properties_manager.cc

 // 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.
 
 #include "chrome/browser/net/http_server_properties_manager.h"
 
 #include "base/bind.h"
 #include "base/metrics/histogram.h"
 #include "base/prefs/pref_service.h"
 #include "base/stl_util.h"
@@ skipping 380 matching lines @@
       }
       std::string protocol_str;
       if (!port_alternate_protocol_dict->GetStringWithoutPathExpansion(
               "protocol_str", &protocol_str)) {
         DVLOG(1) << "Malformed Alternate-Protocol server: " << server_str;
         detected_corrupted_prefs = true;
         continue;
       }
       net::AlternateProtocol protocol =
           net::AlternateProtocolFromString(protocol_str);
-      if (protocol > net::NUM_ALTERNATE_PROTOCOLS) {
+      if (!net::IsAlternateProtocolValid(protocol)) {
         DVLOG(1) << "Malformed Alternate-Protocol server: " << server_str;
         detected_corrupted_prefs = true;
         continue;
       }
 
       net::PortAlternateProtocolPair port_alternate_protocol;
       port_alternate_protocol.port = port;
       port_alternate_protocol.protocol = protocol;
 
       (*alternate_protocol_map)[server] = port_alternate_protocol;
@@ skipping 175 matching lines @@
     }
   }
 
   // Add AlternateProtocol servers to server_pref_map.
   for (net::AlternateProtocolMap::const_iterator map_it =
        alternate_protocol_map->begin();
        map_it != alternate_protocol_map->end(); ++map_it) {
     const net::HostPortPair& server = map_it->first;
     const net::PortAlternateProtocolPair& port_alternate_protocol =
         map_it->second;
-    if (port_alternate_protocol.protocol < 0 ||
-        port_alternate_protocol.protocol >= net::NUM_ALTERNATE_PROTOCOLS) {
+    if (!net::IsAlternateProtocolValid(port_alternate_protocol.protocol)) {
       continue;
     }
 
     ServerPrefMap::iterator it = server_pref_map.find(server);
     if (it == server_pref_map.end()) {
       ServerPref server_pref(false, NULL, &map_it->second);
       server_pref_map[server] = server_pref;
     } else {
       it->second.alternate_protocol = &map_it->second;
     }
@@ skipping 82 matching lines @@
     completion.Run();
 }
 
 void HttpServerPropertiesManager::OnHttpServerPropertiesChanged() {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
   if (!setting_prefs_)
     ScheduleUpdateCacheOnUI();
 }
 
 }  // namespace chrome_browser_net