Add typed data interface to Dart API, this only changes the C++ API as dicussed in a previous email…

bin/secure_socket.cc

Index: bin/secure_socket.cc
===================================================================
--- bin/secure_socket.cc	(revision 18484)
+++ bin/secure_socket.cc	(working copy)
@@ -312,7 +312,7 @@
         Dart_NewPersistentHandle(Dart_ListGetAt(dart_buffers_object, i)));
     buffers_[i] = new uint8_t[size];
     Dart_Handle data = ThrowIfError(
-      Dart_NewExternalByteArray(buffers_[i], size, NULL, NULL));
+        Dart_NewExternalTypedData(buffers_[i], kUint8, size, NULL, NULL));
     ThrowIfError(Dart_SetField(dart_buffer_objects_[i],
                                data_identifier,
                                data));