Revert of Pinch/Zoom Infrastructure & Plumbing CL

cc/layers/solid_color_scrollbar_layer_impl.h

 // 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_SOLID_COLOR_SCROLLBAR_LAYER_IMPL_H_
 #define CC_LAYERS_SOLID_COLOR_SCROLLBAR_LAYER_IMPL_H_
 
 #include "cc/base/cc_export.h"
 #include "cc/layers/scrollbar_layer_impl_base.h"
 
 namespace cc {
 
 class CC_EXPORT SolidColorScrollbarLayerImpl : public ScrollbarLayerImplBase {
  public:
   static scoped_ptr<SolidColorScrollbarLayerImpl> Create(
       LayerTreeImpl* tree_impl,
       int id,
       ScrollbarOrientation orientation,
       int thumb_thickness,
-      bool is_left_side_vertical_scrollbar,
-      bool is_overlay);
+      bool is_left_side_vertical_scrollbar);
   virtual ~SolidColorScrollbarLayerImpl();
 
   // LayerImpl overrides.
   virtual scoped_ptr<LayerImpl> CreateLayerImpl(LayerTreeImpl* tree_impl)
       OVERRIDE;
   virtual void PushPropertiesTo(LayerImpl* layer) OVERRIDE;
 
   virtual void AppendQuads(QuadSink* quad_sink,
                            AppendQuadsData* append_quads_data) OVERRIDE;
 
 
  protected:
   SolidColorScrollbarLayerImpl(LayerTreeImpl* tree_impl,
                                int id,
                                ScrollbarOrientation orientation,
                                int thumb_thickness,
-                               bool is_left_side_vertical_scrollbar,
-                               bool is_overlay);
+                               bool is_left_side_vertical_scrollbar);
 
   // ScrollbarLayerImplBase implementation.
   virtual int ThumbThickness() const OVERRIDE;
   virtual int ThumbLength() const OVERRIDE;
   virtual float TrackLength() const OVERRIDE;
   virtual int TrackStart() const OVERRIDE;
   virtual bool IsThumbResizable() const OVERRIDE;
 
  private:
   int thumb_thickness_;
   SkColor color_;
 };
 
 }  // namespace cc
 
 #endif  // CC_LAYERS_SOLID_COLOR_SCROLLBAR_LAYER_IMPL_H_