Remove SPDY 2.1 support.

net/http/http_server_properties_impl_unittest.cc

Index: net/http/http_server_properties_impl_unittest.cc
diff --git a/net/http/http_server_properties_impl_unittest.cc b/net/http/http_server_properties_impl_unittest.cc
index f3129e88ea2ef099553b9bc1f45d2c95950fcdad..8dc9de3c02d1ff67267cf8ea9d0f7cc55883e66f 100644
--- a/net/http/http_server_properties_impl_unittest.cc
+++ b/net/http/http_server_properties_impl_unittest.cc
@@ -209,7 +209,7 @@ TEST_F(AlternateProtocolServerPropertiesTest, Initialize) {
   AlternateProtocolMap alternate_protocol_map;
   PortAlternateProtocolPair port_alternate_protocol_pair;
   port_alternate_protocol_pair.port = 123;
-  port_alternate_protocol_pair.protocol = NPN_SPDY_21;
+  port_alternate_protocol_pair.protocol = NPN_SPDY_2;
   alternate_protocol_map[test_host_port_pair2] = port_alternate_protocol_pair;
   impl_.InitializeAlternateProtocolServers(&alternate_protocol_map);
 
@@ -221,7 +221,7 @@ TEST_F(AlternateProtocolServerPropertiesTest, Initialize) {
   port_alternate_protocol_pair =
       impl_.GetAlternateProtocol(test_host_port_pair2);
   EXPECT_EQ(123, port_alternate_protocol_pair.port);
-  EXPECT_EQ(NPN_SPDY_21, port_alternate_protocol_pair.protocol);
+  EXPECT_EQ(NPN_SPDY_2, port_alternate_protocol_pair.protocol);
 }
 
 TEST_F(AlternateProtocolServerPropertiesTest, SetBroken) {
@@ -246,7 +246,7 @@ TEST_F(AlternateProtocolServerPropertiesTest, Forced) {
 
   PortAlternateProtocolPair default_protocol;
   default_protocol.port = 1234;
-  default_protocol.protocol = NPN_SPDY_21;
+  default_protocol.protocol = NPN_SPDY_2;
   HttpServerPropertiesImpl::ForceAlternateProtocol(default_protocol);
 
   // Verify the forced protocol.