Revert of Migrate Local Discovery from net::IPAddressNumber to net::IPAddress.

chrome/browser/local_discovery/endpoint_resolver.h

Index: chrome/browser/local_discovery/endpoint_resolver.h
diff --git a/chrome/browser/local_discovery/endpoint_resolver.h b/chrome/browser/local_discovery/endpoint_resolver.h
index f944c608cc72a4e28015d3ab68422c64e04d7bdf..ae67bc8c60568d6ad21922ceb9df43610a64047c 100644
--- a/chrome/browser/local_discovery/endpoint_resolver.h
+++ b/chrome/browser/local_discovery/endpoint_resolver.h
@@ -16,7 +16,6 @@
 
 namespace net {
 class HostPortPair;
-class IPAddress;
 class IPEndPoint;
 }
 
@@ -43,8 +42,8 @@
   void DomainResolveComplete(uint16_t port,
                              const ResultCallback& callback,
                              bool success,
-                             const net::IPAddress& address_ipv4,
-                             const net::IPAddress& address_ipv6);
+                             const net::IPAddressNumber& address_ipv4,
+                             const net::IPAddressNumber& address_ipv6);
 
  private:
   scoped_refptr<ServiceDiscoverySharedClient> service_discovery_client_;