Canvas API. There are still a number of things to do:

runtime/embedders/openglui/common/timer.h

 // Copyright (c) 2012, 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 EMBEDDERS_OPENGLUI_COMMON_TIMER_H_
 #define EMBEDDERS_OPENGLUI_COMMON_TIMER_H_
 
 #include <time.h>
 
 class Timer {
  public:
   Timer();
-  void reset();
-  void update();
-  double now();
-  float elapsed();
+  void Reset();
+  void Update();
+  double Now();
+  float Elapsed();
 
  private:
   float elapsed_;
   double last_time_;
 };
 
 #endif  // EMBEDDERS_OPENGLUI_COMMON_TIMER_H_