Don't depend on libdart_io in run_vm_tests and gen_snapshot.

runtime/bin/builtin_natives.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 <stdlib.h>
 #include <stdio.h>
 #include <string.h>
 
 #include "include/dart_api.h"
 
 #include "platform/assert.h"
 
 #include "bin/builtin.h"
 #include "bin/dartutils.h"
 #include "bin/io_natives.h"
 #include "bin/platform.h"
 
 namespace dart {
 namespace bin {
 
 // Lists the native functions implementing basic functionality in
 // standalone dart, such as printing, file I/O, and platform information.
 // Advanced I/O classes like sockets and process management are implemented
 // using functions listed in io_natives.cc.
 #define BUILTIN_NATIVE_LIST(V)                                                 \
+  V(Crypto_GetRandomBytes, 1)                                                  \
   V(Directory_Exists, 1)                                                       \
   V(Directory_Create, 1)                                                       \
   V(Directory_Current, 0)                                                      \
   V(Directory_SetCurrent, 1)                                                   \
   V(Directory_SystemTemp, 0)                                                   \
   V(Directory_CreateTemp, 1)                                                   \
   V(Directory_Delete, 2)                                                       \
   V(Directory_Rename, 2)                                                       \
   V(Directory_List, 3)                                                         \
   V(File_Open, 2)                                                              \
@@ skipping 18 matching lines @@
   V(File_Delete, 1)                                                            \
   V(File_DeleteLink, 1)                                                        \
   V(File_Rename, 2)                                                            \
   V(File_Copy, 2)                                                              \
   V(File_RenameLink, 2)                                                        \
   V(File_ResolveSymbolicLinks, 1)                                              \
   V(File_OpenStdio, 1)                                                         \
   V(File_GetStdioHandleType, 1)                                                \
   V(File_GetType, 2)                                                           \
   V(File_AreIdentical, 2)                                                      \
-  V(FileSystemWatcher_CloseWatcher, 1)                                         \
-  V(FileSystemWatcher_GetSocketId, 2)                                          \
-  V(FileSystemWatcher_InitWatcher, 0)                                          \
-  V(FileSystemWatcher_IsSupported, 0)                                          \
-  V(FileSystemWatcher_ReadEvents, 2)                                           \
-  V(FileSystemWatcher_UnwatchPath, 2)                                          \
-  V(FileSystemWatcher_WatchPath, 4)                                            \
   V(Logger_PrintString, 1)
 
 BUILTIN_NATIVE_LIST(DECLARE_FUNCTION);
 
 static struct NativeEntries {
   const char* name_;
   Dart_NativeFunction function_;
   int argument_count_;
 } BuiltinEntries[] = {
   BUILTIN_NATIVE_LIST(REGISTER_FUNCTION)
@@ skipping 38 matching lines @@
     // interrupt.
     fprintf(stdout, "%s\n", Dart_GetError(result));
   } else {
     fprintf(stdout, "%.*s\n", static_cast<int>(length), chars);
   }
   fflush(stdout);
 }
 
 }  // namespace bin
 }  // namespace dart