Remove moar composited scrolling from sky

sky/viewer/cc/web_layer_impl.h

 // 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 SKY_VIEWER_CC_WEB_LAYER_IMPL_H_
 #define SKY_VIEWER_CC_WEB_LAYER_IMPL_H_
 
 #include <string>
 
 #include "base/memory/ref_counted.h"
@@ skipping 89 matching lines @@
   virtual bool addAnimation(blink::WebCompositorAnimation* animation);
   virtual void removeAnimation(int animation_id);
   virtual void removeAnimation(int animation_id,
                                blink::WebCompositorAnimation::TargetProperty);
   virtual void pauseAnimation(int animation_id, double time_offset);
   virtual bool hasActiveAnimation();
   virtual void setForceRenderSurface(bool force);
   virtual void setScrollPosition(blink::WebPoint position);
   virtual blink::WebPoint scrollPosition() const;
   virtual void setScrollClipLayer(blink::WebLayer* clip_layer);
-  virtual bool scrollable() const;
-  virtual void setUserScrollable(bool horizontal, bool vertical);
-  virtual bool userScrollableHorizontal() const;
-  virtual bool userScrollableVertical() const;
-  virtual void setHaveWheelEventHandlers(bool have_wheel_event_handlers);
-  virtual bool haveWheelEventHandlers() const;
-  virtual void setHaveScrollEventHandlers(bool have_scroll_event_handlers);
-  virtual bool haveScrollEventHandlers() const;
-  virtual void setShouldScrollOnMainThread(bool scroll_on_main);
-  virtual bool shouldScrollOnMainThread() const;
-  virtual void setNonFastScrollableRegion(
-      const blink::WebVector<blink::WebRect>& region);
   virtual void setScrollClient(blink::WebLayerScrollClient* client);
   virtual bool isOrphan() const;
   virtual void setWebLayerClient(blink::WebLayerClient* client);
 
   // LayerClient implementation.
   virtual scoped_refptr<base::debug::ConvertableToTraceFormat> TakeDebugInfo()
       override;
 
   virtual void setScrollParent(blink::WebLayer* parent);
   virtual void setClipParent(blink::WebLayer* parent);
 
  protected:
   scoped_refptr<cc::Layer> layer_;
   blink::WebLayerClient* web_layer_client_;
 
  private:
   scoped_ptr<WebToCCAnimationDelegateAdapter> animation_delegate_adapter_;
 
   DISALLOW_COPY_AND_ASSIGN(WebLayerImpl);
 };
 
 }  // namespace sky_viewer_cc
 
 #endif  // SKY_VIEWER_CC_WEB_LAYER_IMPL_H_