Rename PlatformScreen implementations.

services/ui/display/platform_screen_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 SERVICES_UI_DISPLAY_PLATFORM_SCREEN_IMPL_H_
-#define SERVICES_UI_DISPLAY_PLATFORM_SCREEN_IMPL_H_
-
-#include <stdint.h>
-
-#include "base/callback.h"
-#include "base/memory/weak_ptr.h"
-#include "services/ui/display/platform_screen.h"
-
-namespace display {
-
-// PlatformScreenImpl provides the necessary functionality to configure all
-// attached physical displays on non-ozone platforms.
-class PlatformScreenImpl : public PlatformScreen {
- public:
-  PlatformScreenImpl();
-  ~PlatformScreenImpl() override;
-
- private:
-  // Fake creation of a single 1024x768 display.
-  void FixedSizeScreenConfiguration();
-
-  // PlatformScreen.
-  void Init(PlatformScreenDelegate* delegate) override;
-  int64_t GetPrimaryDisplayId() const override;
-
-  PlatformScreenDelegate* delegate_ = nullptr;
-
-  base::WeakPtrFactory<PlatformScreenImpl> weak_ptr_factory_;
-
-  DISALLOW_COPY_AND_ASSIGN(PlatformScreenImpl);
-};
-
-}  // namespace display
-
-#endif  // SERVICES_UI_DISPLAY_PLATFORM_SCREEN_IMPL_H_