[ScreenOrientation] De-associate device.mojom.ScreenOrientation from legacy IPC channel.

content/renderer/screen_orientation/screen_orientation_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_SCREEN_ORIENTATION_SCREEN_ORIENTATION_DISPATCHER_H_
-#define CONTENT_RENDERER_SCREEN_ORIENTATION_SCREEN_ORIENTATION_DISPATCHER_H_
-
-#include <memory>
-#include <utility>
-
-#include "base/compiler_specific.h"
-#include "base/id_map.h"
-#include "base/macros.h"
-#include "content/public/renderer/render_frame_observer.h"
-#include "device/screen_orientation/public/interfaces/screen_orientation.mojom.h"
-#include "third_party/WebKit/public/platform/modules/screen_orientation/WebLockOrientationCallback.h"
-#include "third_party/WebKit/public/platform/modules/screen_orientation/WebScreenOrientationClient.h"
-#include "third_party/WebKit/public/platform/modules/screen_orientation/WebScreenOrientationLockType.h"
-#include "third_party/WebKit/public/platform/modules/screen_orientation/WebScreenOrientationType.h"
-
-namespace content {
-
-using device::mojom::ScreenOrientationAssociatedPtr;
-using device::mojom::ScreenOrientationLockResult;
-
-class RenderFrame;
-
-// ScreenOrientationDispatcher implements the WebScreenOrientationClient API
-// which handles screen lock. It sends lock (or unlock) requests to the browser
-// process and listens for responses and let Blink know about the result of the
-// request via WebLockOrientationCallback.
-class CONTENT_EXPORT ScreenOrientationDispatcher :
-    public RenderFrameObserver,
-    NON_EXPORTED_BASE(public blink::WebScreenOrientationClient) {
- public:
-  explicit ScreenOrientationDispatcher(RenderFrame* render_frame);
-  ~ScreenOrientationDispatcher() override;
-
- private:
-  friend class ScreenOrientationDispatcherTest;
-
-  // RenderFrameObserver implementation.
-  void OnDestruct() override;
-
-  // blink::WebScreenOrientationClient implementation.
-  void lockOrientation(
-      blink::WebScreenOrientationLockType orientation,
-      std::unique_ptr<blink::WebLockOrientationCallback> callback) override;
-  void unlockOrientation() override;
-  void startAccurateListen() override;
-  void stopAccurateListen() override;
-
-  void OnLockOrientationResult(int request_id,
-                               ScreenOrientationLockResult result);
-
-  void CancelPendingLocks();
-
-  int GetRequestIdForTests();
-
-  device::mojom::ScreenOrientation* GetRemoteScreenOrientation();
-
-  // This should only be called by ScreenOrientationDispatcherTest
-  void SetScreenOrientationForTests(
-      ScreenOrientationAssociatedPtr& screen_orientation_for_tests) {
-    screen_orientation_ = std::move(screen_orientation_for_tests);
-  }
-
-  // The pending_callbacks_ map is mostly meant to have a unique ID to associate
-  // with every callback going trough the dispatcher. The map will own the
-  // pointer in the sense that it will destroy it when Remove() will be called.
-  // Furthermore, we only expect to have one callback at a time in this map,
-  // which is what IDMap was designed for.
-  using CallbackMap = IDMap<std::unique_ptr<blink::WebLockOrientationCallback>>;
-  CallbackMap pending_callbacks_;
-
-  ScreenOrientationAssociatedPtr screen_orientation_;
-
-  DISALLOW_COPY_AND_ASSIGN(ScreenOrientationDispatcher);
-};
-
-}  // namespace content
-
-#endif  // CONTENT_RENDERER_SCREEN_ORIENTATION_SCREEN_ORIENTATION_DISPATCHER_H_