[dart:io] Namespaces for file IO

runtime/bin/dartutils.h

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #ifndef RUNTIME_BIN_DARTUTILS_H_
 #define RUNTIME_BIN_DARTUTILS_H_
 
 #include "bin/isolate_data.h"
 #include "include/dart_api.h"
 #include "include/dart_native_api.h"
@@ skipping 112 matching lines @@
   static void WriteFile(const void* buffer, intptr_t num_bytes, void* stream);
   static void CloseFile(void* stream);
   static bool EntropySource(uint8_t* buffer, intptr_t length);
   static Dart_Handle ReadStringFromFile(const char* filename);
   static Dart_Handle MakeUint8Array(const uint8_t* buffer, intptr_t length);
   static Dart_Handle PrepareForScriptLoading(bool is_service_isolate,
                                              bool trace_loading);
   static Dart_Handle SetupServiceLoadPort();
   static Dart_Handle SetupPackageRoot(const char* package_root,
                                       const char* packages_file);
-  static Dart_Handle SetupIOLibrary(const char* script_uri);
+  static Dart_Handle SetupIOLibrary(const char* namespc,
+                                    const char* script_uri);
 
   static bool PostNull(Dart_Port port_id);
   static bool PostInt32(Dart_Port port_id, int32_t value);
   static bool PostInt64(Dart_Port port_id, int64_t value);
 
   static Dart_Handle GetDartType(const char* library_url,
                                  const char* class_name);
   // Create a new Dart OSError object with the current OS error.
   static Dart_Handle NewDartOSError();
   // Create a new Dart OSError object with the provided OS error.
@@ skipping 493 matching lines @@
   bool is_typed_data_;
 
   DISALLOW_ALLOCATION();
   DISALLOW_COPY_AND_ASSIGN(ScopedMemBuffer);
 };
 
 }  // namespace bin
 }  // namespace dart
 
 #endif  // RUNTIME_BIN_DARTUTILS_H_