Initial implementation of API WakeLock.

Source/modules/wake_lock/WakeLock.h

Index: Source/modules/wake_lock/WakeLock.h
diff --git a/Source/modules/wake_lock/WakeLock.h b/Source/modules/wake_lock/WakeLock.h
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index 0000000000000000000000000000000000000000..4ee29facbc020ded6a9137e142246936a592aa8c
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+++ b/Source/modules/wake_lock/WakeLock.h
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+// Copyright 2014 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 WakeLock_h
+#define WakeLock_h
+
+#include "bindings/core/v8/ScriptPromise.h"
+#include "bindings/core/v8/ScriptWrappable.h"
+#include "core/dom/ActiveDOMObject.h"
+
+namespace blink {
+
+class Document;
+class ExecutionContext;
+class Navigator;
+class Page;
+
+class WakeLock FINAL
+    : public RefCountedWillBeGarbageCollectedFinalized<WakeLock>
+    , public ScriptWrappable
+    , public ActiveDOMObject {
+public:
+    static PassRefPtrWillBeRawPtr<WakeLock> create(ExecutionContext*);
+    virtual ~WakeLock();
+    void trace(Visitor*) { }
+
+    ScriptPromise request(ScriptState*, const AtomicString& type);
+    ScriptPromise release(ScriptState*, const AtomicString& type);
+    bool isHeld(const AtomicString& type);
+
+private:
+    explicit WakeLock(ExecutionContext*);
+
+    Document* document() const;
+    Page* page() const;
+};
+
+} // namespace blink
+
+#endif // WakeLock_h