Fix to ensure the product mode builds again.

runtime/vm/gc_sweeper.cc

 // Copyright (c) 2011, 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 "vm/gc_sweeper.h"
 
 #include "vm/freelist.h"
 #include "vm/globals.h"
 #include "vm/heap.h"
 #include "vm/lockers.h"
@@ skipping 101 matching lines @@
     MonitorLocker ml(old_space_->tasks_lock());
     old_space_->set_tasks(old_space_->tasks() + 1);
     ml.Notify();
   }
 
   virtual void Run() {
     bool result = Thread::EnterIsolateAsHelper(task_isolate_);
     ASSERT(result);
     {
       Thread* thread = Thread::Current();
-      TimelineDurationScope tds(thread, Timeline::GetGCStream(), "SweeperTask");
+      TIMELINE_FUNCTION_GC_DURATION(thread, "SweeperTask");
       GCSweeper sweeper;
 
       HeapPage* page = first_;
       HeapPage* prev_page = NULL;
 
       while (page != NULL) {
         thread->CheckForSafepoint();
         HeapPage* next_page = page->next();
         ASSERT(page->type() == HeapPage::kData);
         bool page_in_use = sweeper.SweepPage(page, freelist_, false);
@@ skipping 38 matching lines @@
   SweeperTask* task =
       new SweeperTask(isolate,
                       isolate->heap()->old_space(),
                       first, last,
                       freelist);
   ThreadPool* pool = Dart::thread_pool();
   pool->Run(task);
 }
 
 }  // namespace dart