Only enable the Dart timeline for benchmarks

mojo/dart/unittests/embedder_tester/dart_test.h

 // Copyright 2015 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.
 
 #ifndef MOJO_DART_UNITTESTS_EMBEDDER_TESTER_DART_TEST_H_
 #define MOJO_DART_UNITTESTS_EMBEDDER_TESTER_DART_TEST_H_
 
 #include "base/bind.h"
 #include "base/files/file_path.h"
 #include "base/path_service.h"
 #include "base/rand_util.h"
 #include "mojo/dart/embedder/dart_controller.h"
 #include "mojo/public/c/system/types.h"
 #include "mojo/public/cpp/environment/environment.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace mojo {
 namespace dart {
 
 class DartTest : public testing::Test {
  public:
   DartTest() {}
 
   static void SetUpTestCase() {
-    DartController::Initialize(nullptr, true, false, nullptr, 0);
+    DartController::Initialize(nullptr, true, false, false, nullptr, 0);
   }
 
   static void TearDownTestCase() {
     DartController::Shutdown();
   }
 
   void RunDartTest(const base::FilePath& path,
                    const std::vector<std::string>& script_arguments,
                    bool compile_all,
                    bool expect_unhandled_exception,
@@ skipping 12 matching lines @@
     EXPECT_TRUE(Dart_IsError(error));
     *exception = true;
     *closed_handles = count;
   }
 };
 
 }  // namespace dart
 }  // namespace mojo
 
 #endif  // MOJO_DART_UNITTESTS_EMBEDDER_TESTER_DART_TEST_H_