Support symbolic links and package imports in gen_snapshot.

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 "bin/builtin.h"
 #include "bin/utils.h"
 #include "include/dart_api.h"
@@ skipping 126 matching lines @@
 
   // Create a new Dart String object from a C String.
   static Dart_Handle NewString(const char* str) {
     ASSERT(str != NULL);
     return Dart_NewStringFromUTF8(reinterpret_cast<const uint8_t*>(str),
                                   strlen(str));
   }
 
   static void SetOriginalWorkingDirectory();
 
+  static const char* MapLibraryUrl(CommandLineOptions* url_mapping,
+                                   const char* url_string);
+
+  static Dart_Handle ResolveScriptUri(Dart_Handle script_uri,
+                                      Dart_Handle builtin_lib);
+
+  static Dart_Handle FilePathFromUri(Dart_Handle script_uri,
+                                     Dart_Handle builtin_lib);
+
+  static Dart_Handle ResolveUri(Dart_Handle library_url,
+                                Dart_Handle url,
+                                Dart_Handle builtin_lib);
+
   // Global state that stores the original working directory..
   static const char* original_working_directory;
 
   static const char* kDartScheme;
   static const char* kDartExtensionScheme;
   static const char* kBuiltinLibURL;
   static const char* kCoreLibURL;
   static const char* kCryptoLibURL;
   static const char* kIOLibURL;
   static const char* kIOLibPatchURL;
@@ skipping 238 matching lines @@
   void* Peer() const { return cobject_->value.as_external_byte_array.peer; }
   Dart_PeerFinalizer Callback() const {
     return cobject_->value.as_external_byte_array.callback;
   }
 
  private:
   DISALLOW_COPY_AND_ASSIGN(CObjectExternalUint8Array);
 };
 
 #endif  // BIN_DARTUTILS_H_