Remove parts of //cc we aren't using

cc/layers/painted_scrollbar_layer.h

Index: cc/layers/painted_scrollbar_layer.h
diff --git a/cc/layers/painted_scrollbar_layer.h b/cc/layers/painted_scrollbar_layer.h
deleted file mode 100644
index ae2b125e785a4f2117a349c55798cfd20472a2d6..0000000000000000000000000000000000000000
--- a/cc/layers/painted_scrollbar_layer.h
+++ /dev/null
@@ -1,107 +0,0 @@
-// Copyright 2013 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_PAINTED_SCROLLBAR_LAYER_H_
-#define CC_LAYERS_PAINTED_SCROLLBAR_LAYER_H_
-
-#include "cc/base/cc_export.h"
-#include "cc/input/scrollbar.h"
-#include "cc/layers/layer.h"
-#include "cc/layers/scrollbar_layer_interface.h"
-#include "cc/layers/scrollbar_theme_painter.h"
-#include "cc/resources/layer_updater.h"
-#include "cc/resources/scoped_ui_resource.h"
-
-namespace cc {
-class ScrollbarThemeComposite;
-
-class CC_EXPORT PaintedScrollbarLayer : public ScrollbarLayerInterface,
-                                        public Layer {
- public:
-  scoped_ptr<LayerImpl> CreateLayerImpl(LayerTreeImpl* tree_impl) override;
-
-  static scoped_refptr<PaintedScrollbarLayer> Create(
-      scoped_ptr<Scrollbar> scrollbar,
-      int scroll_layer_id);
-
-  bool OpacityCanAnimateOnImplThread() const override;
-  ScrollbarLayerInterface* ToScrollbarLayer() override;
-
-  // ScrollbarLayerInterface
-  int ScrollLayerId() const override;
-  void SetScrollLayer(int layer_id) override;
-  void SetClipLayer(int layer_id) override;
-
-  ScrollbarOrientation orientation() const override;
-
-  // Layer interface
-  bool Update(ResourceUpdateQueue* queue,
-              const OcclusionTracker<Layer>* occlusion) override;
-  void SetLayerTreeHost(LayerTreeHost* host) override;
-  void PushPropertiesTo(LayerImpl* layer) override;
-  void PushScrollClipPropertiesTo(LayerImpl* layer) override;
-
-  const gfx::Size& internal_content_bounds() const {
-    return internal_content_bounds_;
-  }
-
- protected:
-  PaintedScrollbarLayer(scoped_ptr<Scrollbar> scrollbar, int scroll_layer_id);
-  ~PaintedScrollbarLayer() override;
-
-  // For unit tests
-  UIResourceId track_resource_id() {
-    return track_resource_.get() ? track_resource_->id() : 0;
-  }
-  UIResourceId thumb_resource_id() {
-    return thumb_resource_.get() ? thumb_resource_->id() : 0;
-  }
-  void UpdateInternalContentScale();
-  void UpdateThumbAndTrackGeometry();
-
- private:
-  gfx::Rect ScrollbarLayerRectToContentRect(const gfx::Rect& layer_rect) const;
-  gfx::Rect OriginThumbRect() const;
-
-  template <typename T>
-  bool UpdateProperty(T value, T* prop) {
-    if (*prop == value)
-      return false;
-    *prop = value;
-    SetNeedsPushProperties();
-    return true;
-  }
-
-  int MaxTextureSize();
-  float ClampScaleToMaxTextureSize(float scale);
-
-  UIResourceBitmap RasterizeScrollbarPart(const gfx::Rect& layer_rect,
-                                          const gfx::Rect& content_rect,
-                                          ScrollbarPart part);
-
-  scoped_ptr<Scrollbar> scrollbar_;
-  int scroll_layer_id_;
-  int clip_layer_id_;
-
-  float internal_contents_scale_;
-  gfx::Size internal_content_bounds_;
-
-  // Snapshot of properties taken in UpdateThumbAndTrackGeometry and used in
-  // PushPropertiesTo.
-  int thumb_thickness_;
-  int thumb_length_;
-  gfx::Point location_;
-  gfx::Rect track_rect_;
-  bool is_overlay_;
-  bool has_thumb_;
-
-  scoped_ptr<ScopedUIResource> track_resource_;
-  scoped_ptr<ScopedUIResource> thumb_resource_;
-
-  DISALLOW_COPY_AND_ASSIGN(PaintedScrollbarLayer);
-};
-
-}  // namespace cc
-
-#endif  // CC_LAYERS_PAINTED_SCROLLBAR_LAYER_H_