Reland of Wake Lock API implementation (Chromium part)

content/renderer/wake_lock/wake_lock_dispatcher.h

Index: content/renderer/wake_lock/wake_lock_dispatcher.h
diff --git a/content/renderer/wake_lock/wake_lock_dispatcher.h b/content/renderer/wake_lock/wake_lock_dispatcher.h
new file mode 100644
index 0000000000000000000000000000000000000000..e36a3e020ac77636a727c65445253082dccc0a3e
--- /dev/null
+++ b/content/renderer/wake_lock/wake_lock_dispatcher.h
@@ -0,0 +1,31 @@
+// 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 CONTENT_RENDERER_WAKE_LOCK_WAKE_LOCK_DISPATCHER_H_
+#define CONTENT_RENDERER_WAKE_LOCK_WAKE_LOCK_DISPATCHER_H_
+
+#include "content/common/wake_lock_service.mojom.h"
+#include "content/public/renderer/render_frame_observer.h"
+#include "third_party/WebKit/public/platform/modules/wake_lock/WebWakeLockClient.h"
+
+namespace content {
+
+// WakeLockDispatcher sends wake lock messages to the browser process using the
+// Mojo WakeLockService.
+class WakeLockDispatcher : public RenderFrameObserver,
+                           public blink::WebWakeLockClient {
+ public:
+  explicit WakeLockDispatcher(RenderFrame* render_frame);
+  ~WakeLockDispatcher() override;
+
+ private:
+  // WebWakeLockClient implementation.
+  virtual void requestKeepScreenAwake(bool keepScreenAwake);
+
+  WakeLockServicePtr wake_lock_service_;
+};
+
+}  // namespace content
+
+#endif  // CONTENT_RENDERER_WAKE_LOCK_WAKE_LOCK_DISPATCHER_H_