Move workers' Performance API code to core/timing

Source/modules/performance/WorkerGlobalScopePerformance.cpp

-/*
- * 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
- * copyright notice, this list of conditions and the following disclaimer
- * in the documentation and/or other materials provided with the
- * distribution.
- *     * Neither the name of Google Inc. 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
- * OWNER 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.
- */
-
-#include "config.h"
-
-#include "modules/performance/WorkerGlobalScopePerformance.h"
-
-#include "core/workers/WorkerGlobalScope.h"
-#include "modules/performance/WorkerPerformance.h"
-
-namespace blink {
-
-WorkerGlobalScopePerformance::WorkerGlobalScopePerformance()
-{
-}
-
-const char* WorkerGlobalScopePerformance::supplementName()
-{
-    return "WorkerGlobalScopePerformance";
-}
-
-WorkerGlobalScopePerformance& WorkerGlobalScopePerformance::from(WorkerGlobalScope& context)
-{
-    WorkerGlobalScopePerformance* supplement = static_cast<WorkerGlobalScopePerformance*>(WillBeHeapSupplement<WorkerGlobalScope>::from(context, supplementName()));
-    if (!supplement) {
-        supplement = new WorkerGlobalScopePerformance();
-        provideTo(context, supplementName(), adoptPtrWillBeNoop(supplement));
-    }
-    return *supplement;
-}
-
-WorkerPerformance* WorkerGlobalScopePerformance::performance(WorkerGlobalScope& context)
-{
-    return from(context).performance(&context);
-}
-
-WorkerPerformance* WorkerGlobalScopePerformance::performance(WorkerGlobalScope* context)
-{
-    if (!m_performance)
-        m_performance = WorkerPerformance::create(context);
-    return m_performance.get();
-}
-
-DEFINE_TRACE(WorkerGlobalScopePerformance)
-{
-    visitor->trace(m_performance);
-    WillBeHeapSupplement<WorkerGlobalScope>::trace(visitor);
-}
-
-} // namespace blink