Remove SocketData and now only pass the dart port to epoll.

runtime/bin/eventhandler_android.h

Index: runtime/bin/eventhandler_android.h
diff --git a/runtime/bin/eventhandler_android.h b/runtime/bin/eventhandler_android.h
index 86a96ea427be2067aadabd18ca1c3e9a400d389a..5a80eef414209e27435277427740ad9f92975a48 100644
--- a/runtime/bin/eventhandler_android.h
+++ b/runtime/bin/eventhandler_android.h
@@ -81,7 +81,7 @@ class EventHandlerImplementation {
   // Gets the socket data structure for a given file
   // descriptor. Creates a new one if one is not found.
   SocketData* GetSocketData(intptr_t fd, bool* is_new);
-  void SendData(intptr_t id, Dart_Port dart_port, intptr_t data);
+  void Notify(intptr_t id, Dart_Port dart_port, intptr_t data);
   void Start(EventHandler* handler);
   void Shutdown();