Add data-URI support class to dart:core (next to Uri).

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 BIN_DARTUTILS_H_
 #define BIN_DARTUTILS_H_
 
 #include "include/dart_api.h"
 #include "include/dart_native_api.h"
 
@@ skipping 113 matching lines @@
                                        Dart_Handle url);
   static Dart_Handle LoadScript(const char* script_uri,
                                 Dart_Handle builtin_lib);
   static Dart_Handle PrepareBuiltinLibrary(Dart_Handle builtin_lib,
                                            Dart_Handle internal_lib,
                                            bool is_service_isolate,
                                            bool trace_loading,
                                            const char* package_root,
                                            const char** package_map,
                                            const char* packages_file);
-  static Dart_Handle PrepareCoreLibrary(Dart_Handle core_lib,
-                                 Dart_Handle builtin_lib,
-                                 bool is_service_isolate);
+  static Dart_Handle PrepareUriLibrary(Dart_Handle uri_lib,
+                                       Dart_Handle builtin_lib,
+                                       bool is_service_isolate);
   static Dart_Handle PrepareAsyncLibrary(Dart_Handle async_lib,
-                                  Dart_Handle isolate_lib);
+                                         Dart_Handle isolate_lib);
   static Dart_Handle PrepareIOLibrary(Dart_Handle io_lib);
   static Dart_Handle PrepareIsolateLibrary(Dart_Handle isolate_lib);
   static Dart_Handle PrepareForScriptLoading(const char* package_root,
                                              const char** package_map,
                                              const char* packages_file,
                                              bool is_service_isolate,
                                              bool trace_loading,
                                              Dart_Handle builtin_lib);
   static Dart_Handle SetupIOLibrary(const char* script_uri);
 
@@ skipping 436 matching lines @@
 
   ~ScopedBlockingCall() {
     Dart_IsolateUnblocked();
   }
 };
 
 }  // namespace bin
 }  // namespace dart
 
 #endif  // BIN_DARTUTILS_H_