Wake Lock API implementation (Blink part)

public/platform/modules/wake_lock/WebWakeLockClient.h

Index: public/platform/modules/wake_lock/WebWakeLockClient.h
diff --git a/public/platform/modules/wake_lock/WebWakeLockClient.h b/public/platform/modules/wake_lock/WebWakeLockClient.h
new file mode 100644
index 0000000000000000000000000000000000000000..4b1ef0172f37e3e7df4f9fee3c1393e7f94236fd
--- /dev/null
+++ b/public/platform/modules/wake_lock/WebWakeLockClient.h
@@ -0,0 +1,19 @@
+// 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 WebWakeLockClient_h
+#define WebWakeLockClient_h
+
+namespace blink {
+
+class WebWakeLockClient {
+public:
+    virtual ~WebWakeLockClient() = default;
+
+    virtual void requestKeepScreenAwake(bool) = 0;
+};
+
+} // namespace blink
+
+#endif