Persist the alternate protocol as a string not an int to allow the enum to be changed without affec…

chrome/browser/net/http_server_properties_manager_unittest.cc

Index: chrome/browser/net/http_server_properties_manager_unittest.cc
diff --git a/chrome/browser/net/http_server_properties_manager_unittest.cc b/chrome/browser/net/http_server_properties_manager_unittest.cc
index 6602b3b90c6a3ca0828044caa2e5374f45b0fc11..a8f77b1d8fd3fc6fe687924d6876fb1a94d7004c 100644
--- a/chrome/browser/net/http_server_properties_manager_unittest.cc
+++ b/chrome/browser/net/http_server_properties_manager_unittest.cc
@@ -142,7 +142,7 @@ TEST_F(HttpServerPropertiesManagerTest,
   // Set up alternate_protocol for www.google.com:80.
   base::DictionaryValue* alternate_protocol = new base::DictionaryValue;
   alternate_protocol->SetInteger("port", 443);
-  alternate_protocol->SetInteger("protocol", static_cast<int>(net::NPN_SPDY_1));
+  alternate_protocol->SetString("protocol_str", "npn-spdy/1");
   server_pref_dict->SetWithoutPathExpansion(
       "alternate_protocol", alternate_protocol);
 
@@ -164,8 +164,8 @@ TEST_F(HttpServerPropertiesManagerTest,
   // Set up alternate_protocol for mail.google.com:80
   base::DictionaryValue* alternate_protocol1 = new base::DictionaryValue;
   alternate_protocol1->SetInteger("port", 444);
-  alternate_protocol1->SetInteger(
-      "protocol", static_cast<int>(net::NPN_SPDY_2));
+  alternate_protocol1->SetString("protocol_str", "npn-spdy/2");
+
   server_pref_dict1->SetWithoutPathExpansion(
       "alternate_protocol", alternate_protocol1);