Mojo-ify implementation of screen orientation locking/unlocking.

content/browser/screen_orientation/screen_orientation_service_impl.h

+// Copyright 2016 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_SCREEN_ORIENTATION_SCREEN_ORIENTATION_SERVICE_IMPL_H
+#define CONTENT_BROWSER_SCREEN_ORIENTATION_SCREEN_ORIENTATION_SERVICE_IMPL_H
+
+#include "base/callback.h"
+#include "base/memory/weak_ptr.h"
+#include "content/common/screen_orientation_service.mojom.h"
+#include "mojo/public/cpp/bindings/strong_binding.h"
+
+namespace content {
+
+class ScreenOrientationProvider;
+
+class ScreenOrientationServiceImpl : public mojom::ScreenOrientationService {
+ public:
+  static void Create(ScreenOrientationProvider* provider,
+                     mojom::ScreenOrientationServiceRequest request);
+
+ private:
+  ScreenOrientationServiceImpl(ScreenOrientationProvider* provider,
+                               mojom::ScreenOrientationServiceRequest request);
+  ~ScreenOrientationServiceImpl() override;
+
+  // ScreenOrientationService:
+  void LockOrientation(blink::WebScreenOrientationLockType orientation,
+                       const LockOrientationCallback& callback) override;
+  void UnlockOrientation() override;
+
+  void NotifyLockResult(mojom::ScreenOrientationLockResult result);
+
+  ScreenOrientationProvider* provider_;
+  LockOrientationCallback on_result_callback_;
+  mojo::Binding<mojom::ScreenOrientationService> binding_;
+  base::WeakPtrFactory<ScreenOrientationServiceImpl> weak_factory_;
+};
+
+}  // namespace content
+
+#endif  // CONTENT_BROWSER_SCREEN_ORIENTATION_SCREEN_ORIENTATION_SERVICE_IMPL_H