Change the AlternativeServiceMap with SchemeOriginPair key.

net/base/host_port_pair.cc

Index: net/base/host_port_pair.cc
diff --git a/net/base/host_port_pair.cc b/net/base/host_port_pair.cc
index 441a35965d8f4fa7e93a8b323d1a4ffca19d1d20..286451a1a3b10eae9376666f5ffad22f36290eee 100644
--- a/net/base/host_port_pair.cc
+++ b/net/base/host_port_pair.cc
@@ -28,6 +28,12 @@ HostPortPair HostPortPair::FromURL(const GURL& url) {
 }
 
 // static
+HostPortPair HostPortPair::FromSchemeHostPort(
+    const url::SchemeHostPort& origin) {
+  return HostPortPair(origin.host(), origin.port());
+}
+
+// static
 HostPortPair HostPortPair::FromIPEndPoint(const IPEndPoint& ipe) {
   return HostPortPair(ipe.ToStringWithoutPort(), ipe.port());
 }