Reload native extensions when starting from a snapshot.

runtime/include/dart_api.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_INCLUDE_DART_API_H_
 #define RUNTIME_INCLUDE_DART_API_H_
 
 /** \mainpage Dart Embedding API Reference
@@ skipping 2922 matching lines @@
  * \param library The library into which to import another library.
  * \param import The library to import.
  * \param prefix The prefix under which to import.
  *
  * \return A valid handle if no error occurs during the operation.
  */
 DART_EXPORT Dart_Handle Dart_LibraryImportLibrary(Dart_Handle library,
                                                   Dart_Handle import,
                                                   Dart_Handle prefix);
 
+
+/**
+ * Returns a flattened list of pairs. The first element in each pair is the
+ * importing library and and the second element is the imported library for each
+ * import in the isolate of a library whose URI's scheme is [scheme].
+ *
+ * Requires there to be a current isolate.
+ *
+ * \return A handle to a list of flattened pairs of importer-importee.
+ */
+DART_EXPORT Dart_Handle Dart_GetImportsOfScheme(Dart_Handle scheme);
+
+
 /**
  * Called by the embedder to provide the source for a "part of"
  * directive.  This function should be called in response to a
  * Dart_kSourceTag tag handler request (See Dart_LibraryTagHandler,
  * above).
  *
  * \param library The library where the "part of" directive occurs.
  *
  * \param url The original url requested for the part.
  *
@@ skipping 233 matching lines @@
 
 
 /**
  *  Returns whether the VM only supports running from precompiled snapshots and
  *  not from any other kind of snapshot or from source (that is, the VM was
  *  compiled with DART_PRECOMPILED_RUNTIME).
  */
 DART_EXPORT bool Dart_IsPrecompiledRuntime();
 
 #endif  /* INCLUDE_DART_API_H_ */  /* NOLINT */