Strip the scheme off of uris passed into the native extension loader.

runtime/bin/extensions.cc

 // 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.
 
 #include "bin/extensions.h"
 
 #include <stdio.h>
 
 #include "bin/dartutils.h"
 #include "bin/file.h"
 #include "bin/platform.h"
 #include "include/dart_api.h"
 #include "platform/assert.h"
 #include "platform/globals.h"
 
 namespace dart {
 namespace bin {
 
 Dart_Handle Extensions::LoadExtension(const char* extension_directory,
                                       const char* extension_name,
                                       Dart_Handle parent_library) {
-  if (strncmp(extension_directory, "http://", 7) == 0 ||
-      strncmp(extension_directory, "https://", 8) == 0) {
-    return Dart_NewApiError("Cannot load native extensions over http:");
-  }
-
   // For example on Linux: directory/libfoo-arm.so
   const char* library_strings[] = {
     extension_directory,  // directory/
     Platform::LibraryPrefix(),  // lib
     extension_name,  // foo
     "-",
     Platform::HostArchitecture(),  // arm
     ".",
     Platform::LibraryExtension(),  // so
     NULL,
@@ skipping 44 matching lines @@
   for (int i = 0; strings[i] != NULL; i++) {
     index += snprintf(result + index, size - index, "%s", strings[i]);
   }
   ASSERT(index == size - 1);
   ASSERT(result[size - 1] == '\0');
   return result;
 }
 
 }  // namespace bin
 }  // namespace dart