Move workers' Performance API code to core/timing

Source/modules/performance/SharedWorkerPerformance.h

Index: Source/modules/performance/SharedWorkerPerformance.h
diff --git a/Source/modules/performance/SharedWorkerPerformance.h b/Source/modules/performance/SharedWorkerPerformance.h
deleted file mode 100644
index 70dd9cc91c70939eede02b94459fbe5c56e44576..0000000000000000000000000000000000000000
--- a/Source/modules/performance/SharedWorkerPerformance.h
+++ /dev/null
@@ -1,60 +0,0 @@
-/*
- * Copyright (c) 2014, Opera Software ASA. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. Neither the name of Opera Software ASA nor the names of its
- *    contributors may be used to endorse or promote products derived
- *    from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
- * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
- * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
- * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY 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 SharedWorkerPerformance_h
-#define SharedWorkerPerformance_h
-
-#include "platform/Supplementable.h"
-#include "platform/heap/Handle.h"
-
-namespace blink {
-
-class ExecutionContext;
-class SharedWorker;
-
-class SharedWorkerPerformance final : public NoBaseWillBeGarbageCollected<SharedWorkerPerformance>, public WillBeHeapSupplement<SharedWorker> {
-    WILL_BE_USING_GARBAGE_COLLECTED_MIXIN(SharedWorkerPerformance);
-public:
-    static SharedWorkerPerformance& from(SharedWorker&);
-
-    static double workerStart(ExecutionContext*, SharedWorker&);
-    double getWorkerStart(ExecutionContext*, SharedWorker&) const;
-
-    DEFINE_INLINE_VIRTUAL_TRACE() { WillBeHeapSupplement<SharedWorker>::trace(visitor); }
-
-private:
-    SharedWorkerPerformance();
-    static const char* supplementName();
-
-    double m_timeOrigin;
-};
-
-} // namespace blink
-
-#endif // SharedWorkerPerformance_h