Revert "Start adding TLS (SSL) sockets to dart:io."

runtime/bin/dartutils.cc

Index: runtime/bin/dartutils.cc
diff --git a/runtime/bin/dartutils.cc b/runtime/bin/dartutils.cc
index eaf5ec06e9ed31f3463397f51c21cf781d65c095..6939332786ac04bb663718db0f9d879c8dccd611 100644
--- a/runtime/bin/dartutils.cc
+++ b/runtime/bin/dartutils.cc
@@ -304,13 +304,6 @@ bool DartUtils::PostInt32(Dart_Port port_id, int32_t value) {
 }
 
 
-Dart_Handle DartUtils::GetDartClass(const char* library_url,
-                                    const char* class_name) {
-  return Dart_GetClass(Dart_LookupLibrary(Dart_NewString(library_url)),
-                       Dart_NewString(class_name));
-}
-
-
 Dart_Handle DartUtils::NewDartOSError() {
   // Extract the current OS error.
   OSError os_error;
@@ -320,29 +313,21 @@ Dart_Handle DartUtils::NewDartOSError() {
 
 Dart_Handle DartUtils::NewDartOSError(OSError* os_error) {
   // Create a Dart OSError object with the information retrieved from the OS.
-  Dart_Handle clazz = GetDartClass(kIOLibURL, "OSError");
+  Dart_Handle url = Dart_NewString("dart:io");
+  if (Dart_IsError(url)) return url;
+  Dart_Handle lib = Dart_LookupLibrary(url);
+  if (Dart_IsError(lib)) return lib;
+  Dart_Handle class_name = Dart_NewString("OSError");
+  if (Dart_IsError(class_name)) return class_name;
+  Dart_Handle clazz = Dart_GetClass(lib, class_name);
+  if (Dart_IsError(clazz)) return clazz;
   Dart_Handle args[2];
   args[0] = Dart_NewString(os_error->message());
+  if (Dart_IsError(args[0])) return args[0];
   args[1] = Dart_NewInteger(os_error->code());
-  return Dart_New(clazz, Dart_Null(), 2, args);
-}
-
-
-Dart_Handle DartUtils::NewDartExceptionWithMessage(const char* library_url,
-                                                   const char* exception_name,
-                                                   const char* message) {
-  // Create a Dart Exception object with a message.
-  Dart_Handle clazz = GetDartClass(library_url, exception_name);
-  Dart_Handle args[1];
-  args[0] = Dart_NewString(message);
-  return Dart_New(clazz, Dart_Null(), 1, args);
-}
-
-
-Dart_Handle DartUtils::NewDartIllegalArgumentException(const char* message) {
-  return NewDartExceptionWithMessage(kCoreLibURL,
-                                     "IllegalArgumentException",
-                                     message);
+  if (Dart_IsError(args[1])) return args[1];
+  Dart_Handle err = Dart_New(clazz, Dart_Null(), 2, args);
+  return err;
 }