Add --timing

runtime/vm/thread.h

 // 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.
 
 #ifndef VM_THREAD_H_
 #define VM_THREAD_H_
 
 #include "vm/globals.h"
 #include "vm/os_thread.h"
 #include "vm/store_buffer.h"
@@ skipping 239 matching lines @@
   static intptr_t OffsetFromThread(const RuntimeEntry* runtime_entry);
 
   TimelineEventBlock* timeline_block() const {
     return state_.timeline_block;
   }
 
   void set_timeline_block(TimelineEventBlock* block) {
     state_.timeline_block = block;
   }
 
+  void CloseTimelineBlock();
   class Log* log() const;
 
   LongJumpScope* long_jump_base() const { return state_.long_jump_base; }
   void set_long_jump_base(LongJumpScope* value) {
     state_.long_jump_base = value;
   }
 
   ThreadId id() const {
     ASSERT(id_ != OSThread::kInvalidThreadId);
     return id_;
@@ skipping 57 matching lines @@
   friend class ApiZone;
   friend class Isolate;
   friend class StackZone;
   friend class ThreadRegistry;
   DISALLOW_COPY_AND_ASSIGN(Thread);
 };
 
 }  // namespace dart
 
 #endif  // VM_THREAD_H_