Wake Lock API implementation (Chromium part)

content/browser/wake_lock/wake_lock_service_impl.h

+// 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_BROWSER_WAKE_LOCK_WAKE_LOCK_SERVICE_IMPL_H_
+#define CONTENT_BROWSER_WAKE_LOCK_WAKE_LOCK_SERVICE_IMPL_H_
+
+#include "base/memory/weak_ptr.h"
+#include "content/common/wake_lock_service.mojom.h"
+#include "mojo/public/cpp/bindings/interface_request.h"
+#include "mojo/public/cpp/bindings/strong_binding.h"
+
+namespace content {
+
+class RenderFrameHost;
+
+class WakeLockServiceImpl: public WakeLockService {
+ public:
+  class WakeLockServiceCallback {
+   public:
+    virtual ~WakeLockServiceCallback() { }
+    virtual void RequestWakeLock(RenderFrameHost* render_frame_host) = 0;
+    virtual void CancelWakeLock(RenderFrameHost* render_frame_host) = 0;
+  };
+
+  ~WakeLockServiceImpl() override;
+
+  static void CreateService(base::WeakPtr<WakeLockServiceCallback> callback,
+                            RenderFrameHost* render_frame_host,
+                            mojo::InterfaceRequest<WakeLockService> request);
+
+  // WakeLockSevice implementation.
+  void RequestWakeLock() override;
+  void CancelWakeLock() override;
+
+ private:
+  WakeLockServiceImpl(base::WeakPtr<WakeLockServiceCallback> callback,
+                      RenderFrameHost* render_frame_host,
+                      mojo::InterfaceRequest<WakeLockService> request);

[mlamouri (slow - plz ping), 2015/08/21 10:03:35]

I think you should pass the WakeLockServiceContext to the WakeLockServiceImpl so
you don't need that callback interface in between.

[alogvinov, 2015/08/26 14:47:19]

Done.

+
+  base::WeakPtr<WakeLockServiceCallback> callback_;
+  RenderFrameHost* render_frame_host_;
+  mojo::StrongBinding<WakeLockService> binding_;
+
+  DISALLOW_COPY_AND_ASSIGN(WakeLockServiceImpl);
+};
+
+}  // namespace content
+
+#endif  // CONTENT_BROWSER_WAKE_LOCK_WAKE_LOCK_SERVICE_IMPL_H_