Initial implementation of API WakeLock.

public/platform/WebWakeLockRequestCallback.h

Index: public/platform/WebWakeLockRequestCallback.h
diff --git a/public/platform/WebWakeLockRequestCallback.h b/public/platform/WebWakeLockRequestCallback.h
new file mode 100644
index 0000000000000000000000000000000000000000..0ac530d9bf9088284528d78601831299bba746e6
--- /dev/null
+++ b/public/platform/WebWakeLockRequestCallback.h
@@ -0,0 +1,22 @@
+// 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 WebWakeLockRequestCallback_h
+#define WebWakeLockRequestCallback_h
+
+namespace blink {
+
+class WebWakeLockRequestCallback {
+public:
+    virtual ~WebWakeLockRequestCallback() { };
+
+    virtual void onCreatedWakeLockSuccessful(int) = 0;
+    virtual void onCreatedWakeLockFailed(int) = 0;
+    virtual void onUnlockedWakeLockSuccessful(int) = 0;
+    virtual void onUnlockedWakeLockFailed(int) = 0;
+};
+
+} // namespace blink
+
+#endif // WebWakeLockRequestCallback_h