ozone: Remove the "drm" software composited platform

ui/ozone/platform/drm/gpu/drm_surface.h

Index: ui/ozone/platform/drm/gpu/drm_surface.h
diff --git a/ui/ozone/platform/drm/gpu/drm_surface.h b/ui/ozone/platform/drm/gpu/drm_surface.h
deleted file mode 100644
index 8cb40b48d7cf24d62f6a84b893c2d1979901b131..0000000000000000000000000000000000000000
--- a/ui/ozone/platform/drm/gpu/drm_surface.h
+++ /dev/null
@@ -1,67 +0,0 @@
-// 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 UI_OZONE_PLATFORM_DRM_GPU_DRM_SURFACE_H_
-#define UI_OZONE_PLATFORM_DRM_GPU_DRM_SURFACE_H_
-
-#include "base/memory/ref_counted.h"
-#include "base/memory/weak_ptr.h"
-#include "ui/gfx/geometry/rect.h"
-#include "ui/gfx/geometry/size.h"
-#include "ui/gfx/skia_util.h"
-#include "ui/gfx/swap_result.h"
-#include "ui/ozone/ozone_export.h"
-#include "ui/ozone/public/surface_ozone_canvas.h"
-
-class SkImage;
-class SkSurface;
-
-namespace ui {
-
-class DrmBuffer;
-class DrmWindow;
-class HardwareDisplayController;
-
-class OZONE_EXPORT DrmSurface : public SurfaceOzoneCanvas {
- public:
-  DrmSurface(DrmWindow* window);
-  ~DrmSurface() override;
-
-  // SurfaceOzoneCanvas:
-  skia::RefPtr<SkSurface> GetSurface() override;
-  void ResizeCanvas(const gfx::Size& viewport_size) override;
-  void PresentCanvas(const gfx::Rect& damage) override;
-  scoped_ptr<gfx::VSyncProvider> CreateVSyncProvider() override;
-
- private:
-  void SchedulePageFlip();
-
-  // Callback for SchedulePageFlip(). This will signal when the page flip event
-  // has completed.
-  void OnPageFlip(gfx::SwapResult result);
-
-  DrmWindow* window_;
-
-  // The actual buffers used for painting.
-  scoped_refptr<DrmBuffer> front_buffer_;
-  scoped_refptr<DrmBuffer> back_buffer_;
-
-  skia::RefPtr<SkSurface> surface_;
-  gfx::Rect last_damage_;
-
-  // Keep track of the requested image and damage for the last presentation.
-  // This will be used to update the scanout buffers once the previous page flip
-  // events completes.
-  skia::RefPtr<SkImage> pending_image_;
-  gfx::Rect pending_image_damage_;
-  bool pending_pageflip_ = false;
-
-  base::WeakPtrFactory<DrmSurface> weak_ptr_factory_;
-
-  DISALLOW_COPY_AND_ASSIGN(DrmSurface);
-};
-
-}  // namespace ui
-
-#endif  // UI_OZONE_PLATFORM_DRM_GPU_DRM_SURFACE_H_