Remove parts of //cc we aren't using

cc/resources/content_layer_updater.h

-// Copyright 2011 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_RESOURCES_CONTENT_LAYER_UPDATER_H_
-#define CC_RESOURCES_CONTENT_LAYER_UPDATER_H_
-
-#include "cc/base/cc_export.h"
-#include "cc/resources/layer_updater.h"
-#include "ui/gfx/geometry/rect.h"
-
-class SkCanvas;
-
-namespace cc {
-
-class LayerPainter;
-class RenderingStatsInstrumentation;
-
-// Base class for BitmapContentLayerUpdater and
-// SkPictureContentLayerUpdater that reduces code duplication between
-// their respective PaintContents implementations.
-class CC_EXPORT ContentLayerUpdater : public LayerUpdater {
- public:
-  void SetOpaque(bool opaque) override;
-  void SetFillsBoundsCompletely(bool fills_bounds) override;
-  void SetBackgroundColor(SkColor background_color) override;
-
- protected:
-  ContentLayerUpdater(scoped_ptr<LayerPainter> painter, int layer_id);
-  ~ContentLayerUpdater() override;
-
-  // Paints the contents. |content_size| size of the underlying layer in
-  // layer's content space. |paint_rect| bounds to paint in content space of the
-  // layer. Both |content_size| and |paint_rect| are in pixels.
-  void PaintContents(SkCanvas* canvas,
-                     const gfx::Size& layer_content_size,
-                     const gfx::Rect& paint_rect,
-                     float contents_width_scale,
-                     float contents_height_scale);
-  gfx::Rect paint_rect() const { return paint_rect_; }
-
-  bool layer_is_opaque() const { return layer_is_opaque_; }
-  bool layer_fills_bounds_completely() const {
-    return layer_fills_bounds_completely_;
-  }
-
-  SkColor background_color() const { return background_color_; }
-
-  int layer_id_;
-
-  // True when it is known that all output pixels will be opaque.
-  bool layer_is_opaque_;
-  // True when it is known that all output pixels will be filled.
-  bool layer_fills_bounds_completely_;
-
- private:
-  gfx::Rect paint_rect_;
-  scoped_ptr<LayerPainter> painter_;
-  SkColor background_color_;
-
-  DISALLOW_COPY_AND_ASSIGN(ContentLayerUpdater);
-};
-
-}  // namespace cc
-
-#endif  // CC_RESOURCES_CONTENT_LAYER_UPDATER_H_