Remove non-leaky LazyInstances in cc.

cc/layers/empty_content_layer_client.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 CC_LAYERS_EMPTY_CONTENT_LAYER_CLIENT_H_
-#define CC_LAYERS_EMPTY_CONTENT_LAYER_CLIENT_H_
-
-#include <memory>
-
-#include "base/lazy_instance.h"
-#include "base/macros.h"
-#include "cc/base/cc_export.h"
-#include "cc/layers/content_layer_client.h"
-#include "ui/gfx/geometry/rect.h"
-
-namespace cc {
-
-class DisplayItemList;
-
-// This is used by deserialized PictureLayers which have no local
-// ContentLayerClient but still have valid content from the original serialized
-// PictureLayer.  The PictureLayer class requires a valid ContentLayerClient to
-// determine if it can draw.  This is a dummy client to keep the logic fairly
-// straightforward.  This is also used by unit tests for creating dummy
-// PictureLayers.
-class CC_EXPORT EmptyContentLayerClient : public ContentLayerClient {
- public:
-  static ContentLayerClient* GetInstance();
-
-  // ContentLayerClient implementation.
-  gfx::Rect PaintableRegion() override;
-  scoped_refptr<DisplayItemList> PaintContentsToDisplayList(
-      PaintingControlSetting painting_status) override;
-  bool FillsBoundsCompletely() const override;
-  size_t GetApproximateUnsharedMemoryUsage() const override;
-
- private:
-  friend struct base::LazyInstanceTraitsBase<EmptyContentLayerClient>;
-
-  EmptyContentLayerClient();
-  ~EmptyContentLayerClient() override;
-
-  DISALLOW_COPY_AND_ASSIGN(EmptyContentLayerClient);
-};
-
-}  // namespace cc
-
-#endif  // CC_LAYERS_EMPTY_CONTENT_LAYER_CLIENT_H_