Offer User Timing in workers

Source/modules/performance/WorkerPerformance.h

 /*
  * Copyright (C) 2013 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 15 matching lines @@
  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #ifndef WorkerPerformance_h
 #define WorkerPerformance_h
 
 #include "bindings/core/v8/ScriptWrappable.h"
 #include "core/dom/ContextLifecycleObserver.h"
+#include "core/timing/PerformanceBase.h"
 #include "platform/heap/Handle.h"
 #include "wtf/Forward.h"
 
 namespace blink {
 
 class ExecutionContext;
 class MemoryInfo;
+class WorkerGlobalScope;
 
-class WorkerPerformance final : public GarbageCollected<WorkerPerformance>, public ScriptWrappable {
+class WorkerPerformance final : public PerformanceBase, public ContextLifecycleObserver {
     DEFINE_WRAPPERTYPEINFO();
 public:
-    static WorkerPerformance* create()
+    static WorkerPerformance* create(WorkerGlobalScope* context)
     {
-        return new WorkerPerformance();
+        return new WorkerPerformance(context);
     }
 
-    double now(ExecutionContext*) const;
+    virtual ExecutionContext* executionContext() const override;
+
     MemoryInfo* memory();
 
-    DECLARE_TRACE();
+    DECLARE_VIRTUAL_TRACE();
 
 private:
-    WorkerPerformance();
+    WorkerPerformance(WorkerGlobalScope*);

[kinuko, 2015/06/04 08:21:23]

nit: explicit

[Kunihiko Sakamoto, 2015/06/05 03:43:56]

Done.

 
     Member<MemoryInfo> m_memoryInfo;
 };
 
 } // namespace blink
 
 #endif // WorkerPerformance_h