Stop waiting for service isolate before starting first DartApp

mojo/dart/embedder/dart_controller.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "base/bind.h"
 #include "base/callback.h"
 #include "base/files/file_util.h"
 #include "base/logging.h"
 #include "base/path_service.h"
 #include "base/rand_util.h"
@@ skipping 672 matching lines @@
 bool DartController::Initialize(
     DartControllerServiceConnector* service_connector,
     bool strict_compilation) {
   service_connector_ = service_connector;
   strict_compilation_ = strict_compilation;
   InitVmIfNeeded(generateEntropy, nullptr, 0);
   return true;
 }
 
 bool DartController::RunDartScript(const DartControllerConfig& config) {
-  BlockForServiceIsolate();
-  CHECK(service_isolate_running_);
   const bool strict = strict_compilation_ || config.strict_compilation;
   Dart_Isolate isolate = CreateIsolateHelper(config.application_data,
                                              strict,
                                              config.callbacks,
                                              config.script_uri,
                                              config.package_root,
                                              config.error,
                                              config.use_network_loader);
   if (isolate == nullptr) {
     return false;
@@ skipping 15 matching lines @@
   }
   BlockForServiceIsolateLocked();
   StopHandleWatcherIsolate();
   Dart_Cleanup();
   service_isolate_running_ = false;
   initialized_ = false;
 }
 
 }  // namespace apps
 }  // namespace mojo