Fix Mac gen_snapshot by calling TimerUtils::InitOnce

runtime/bin/vmservice_dartium.cc

 // Copyright (c) 2015, 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/vmservice_dartium.h"
 
 #include "bin/builtin.h"
 #include "bin/dartutils.h"
 #include "bin/eventhandler.h"
 #include "bin/platform.h"
 #include "bin/thread.h"
+#include "bin/utils.h"
 #include "bin/vmservice_impl.h"
 #include "zlib/zlib.h"
 
 namespace dart {
 namespace bin {
 
 #define CHECK_RESULT(result)                                                   \
   if (Dart_IsError(result)) {                                                  \
     fprintf(stderr, "CHECK_RESULT failed: %s", Dart_GetError(result));         \
     Dart_ExitScope();                                                          \
     Dart_ShutdownIsolate();                                                    \
     return 0;                                                                  \
   }                                                                            \
 
 
 
 static const char* DEFAULT_VM_SERVICE_SERVER_IP = "127.0.0.1";
 static const int DEFAULT_VM_SERVICE_SERVER_PORT = 0;
 
 void VmServiceServer::Bootstrap() {
   if (!Platform::Initialize()) {
     fprintf(stderr, "Platform::Initialize() failed\n");
   }
   DartUtils::SetOriginalWorkingDirectory();
   Thread::InitOnce();
+  TimerUtils::InitOnce();
   EventHandler::Start();
 }
 
 
 Dart_Isolate VmServiceServer::CreateIsolate(const uint8_t* snapshot_buffer) {
   ASSERT(snapshot_buffer != NULL);
   // Create the isolate.
   char* error = 0;
   Dart_Isolate isolate = Dart_CreateIsolate(DART_VM_SERVICE_ISOLATE_NAME,
                                             "main",
@@ skipping 109 matching lines @@
 }
 
 /* DISALLOW_ALLOCATION */
 void VmServiceServer::operator delete(void* pointer)  {
   fprintf(stderr, "unreachable code\n");
   abort();
 }
 
 }  // namespace bin
 }  // namespace dart