First version of PerformanceObserver

Source/core/timing/PerformanceObserverEntryList.h

Index: Source/core/timing/PerformanceObserverEntryList.h
diff --git a/Source/core/timing/PerformanceObserverEntryList.h b/Source/core/timing/PerformanceObserverEntryList.h
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+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef PerformanceObserverEntryList_h
+#define PerformanceObserverEntryList_h
+
+#include "bindings/core/v8/ScriptWrappable.h"
+#include "platform/heap/Handle.h"
+#include "wtf/PassRefPtr.h"
+#include "wtf/RefCounted.h"
+#include "wtf/text/WTFString.h"
+
+namespace blink {
+
+class PerformanceEntry;
+using PerformanceEntryVector = HeapVector<Member<PerformanceEntry>>;
+
+class PerformanceObserverEntryList : public GarbageCollectedFinalized<PerformanceObserverEntryList>, public ScriptWrappable {
+    DEFINE_WRAPPERTYPEINFO();
+public:
+    PerformanceObserverEntryList(const PerformanceEntryVector&);
+
+    virtual ~PerformanceObserverEntryList();
+
+    PerformanceEntryVector getEntries() const;
+    PerformanceEntryVector getEntriesByType(const String& entryType);
+    PerformanceEntryVector getEntriesByName(const String& name, const String& entryType);
+
+    DECLARE_TRACE();
+
+protected:
+    PerformanceEntryVector m_performanceEntries;
+};
+
+} // namespace blink
+
+#endif // PerformanceObserverEntryList_h