Removing webrtc::PortAllocatorFactoryInterface.

webrtc/p2p/client/basicportallocator.cc

Index: webrtc/p2p/client/basicportallocator.cc
diff --git a/webrtc/p2p/client/basicportallocator.cc b/webrtc/p2p/client/basicportallocator.cc
index a14f85b6f289c0516ef732540b9081b5e6146d05..945c9e1a05e923696c0506b2fd4fdae07fb2552e 100644
--- a/webrtc/p2p/client/basicportallocator.cc
+++ b/webrtc/p2p/client/basicportallocator.cc
@@ -70,15 +70,16 @@ BasicPortAllocator::BasicPortAllocator(
     : network_manager_(network_manager),
       socket_factory_(socket_factory),
       stun_servers_() {
-  ASSERT(socket_factory_ != NULL);
+  ASSERT(network_manager_ != nullptr);
+  ASSERT(socket_factory_ != nullptr);
   Construct();
 }
 
-BasicPortAllocator::BasicPortAllocator(
-    rtc::NetworkManager* network_manager)
+BasicPortAllocator::BasicPortAllocator(rtc::NetworkManager* network_manager)
     : network_manager_(network_manager),
-      socket_factory_(NULL),
+      socket_factory_(nullptr),
       stun_servers_() {
+  ASSERT(network_manager_ != nullptr);
   Construct();
 }