WakeLock API: IPC at renderer side.

content/renderer/wake_lock/wake_lock_dispatcher.h

+// 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 CONTENT_RENDERER_WAKE_LOCK_WAKE_LOCK_DISPATCHER_H_
+#define CONTENT_RENDERER_WAKE_LOCK_WAKE_LOCK_DISPATCHER_H_
+
+#include "content/public/renderer/render_view_observer.h"
+#include "third_party/WebKit/public/platform/WebWakeLockClient.h"
+
+namespace content {
+
+// WakeLockDispatcher is a delegate for WakeLock messages used by WebKit.
+// It's the complement of WakeLockDispatcherHost.
+class CONTENT_EXPORT WakeLockDispatcher
+    : public RenderViewObserver,
+      NON_EXPORTED_BASE(public blink::WebWakeLockClient) {
+ public:
+  explicit WakeLockDispatcher(RenderView* render_view);
+  virtual ~WakeLockDispatcher();
+
+ private:
+  friend class WakeLockDispatcherTest;
+
+  blink::WebWakeLockRequestCallback* callback_;
+
+  // RenderFrame::Observer implementation.
+  virtual bool OnMessageReceived(const IPC::Message& message) OVERRIDE;
+
+  // WebWakeLockClient
+  virtual void requestWakeLock(const blink::WakeLockRequestInfo&,
+                               const blink::WebSecurityOrigin&) OVERRIDE;
+  virtual void requestWakeUnlock(const blink::WakeLockRequestInfo&) OVERRIDE;
+  virtual void wakeLockDestroyed() OVERRIDE;
+  virtual void setRequestCallback(blink::WebWakeLockRequestCallback*) OVERRIDE;
+
+  void OnCreatedWakeLockSuccessful(int request_id);
+  void OnCreatedWakeLockFailed(int request_id);
+  void OnUnlockedWakeLockSuccessful(int request_id);
+  void OnUnlockedWakeLockFailed(int request_id);
+};
+}  // namespace content
+
+#endif  // CONTENT_RENDERER_WAKE_LOCK_WAKE_LOCK_DISPATCHER_H_