Eliminate unused url mapping parameter in dartutils

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 95 matching lines @@
                               const char* name,
                               int64_t val);
   static void SetStringField(Dart_Handle handle,
                              const char* name,
                              const char* val);
   static bool IsDartSchemeURL(const char* url_name);
   static bool IsDartExtensionSchemeURL(const char* url_name);
   static bool IsDartIOLibURL(const char* url_name);
   static bool IsDartBuiltinLibURL(const char* url_name);
   static bool IsHttpSchemeURL(const char* url_name);
-  static Dart_Handle CanonicalizeURL(CommandLineOptions* url_mapping,
-                                     Dart_Handle library,
-                                     const char* url_str);
+  static Dart_Handle CanonicalizeURL(Dart_Handle library, const char* url_str);
   static void* OpenFile(const char* name, bool write);
   static void ReadFile(const uint8_t** data, intptr_t* file_len, void* stream);
   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 ReadStringFromHttp(const char* filename);
   static Dart_Handle LibraryTagHandler(Dart_LibraryTag tag,
                                        Dart_Handle library,
                                        Dart_Handle url);
   static Dart_Handle LoadScript(const char* script_uri,
                                 Dart_Handle builtin_lib);
   static Dart_Handle LoadScriptHttp(Dart_Handle script_uri,
                                     Dart_Handle builtin_lib);
-  static Dart_Handle LoadSource(CommandLineOptions* url_mapping,
-                                Dart_Handle library,
+  static Dart_Handle LoadSource(Dart_Handle library,
                                 Dart_Handle url,
                                 Dart_LibraryTag tag,
                                 const char* filename);
   static Dart_Handle PrepareForScriptLoading(const char* package_root,
                                              Dart_Handle builtin_lib);
 
   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);
 
@@ skipping 397 matching lines @@
   }
 
  private:
   DISALLOW_COPY_AND_ASSIGN(CObjectExternalUint8Array);
 };
 
 }  // namespace bin
 }  // namespace dart
 
 #endif  // BIN_DARTUTILS_H_