Remove scroll distribution code from Layer/LayerTreeHost.

webkit/renderer/compositor_bindings/web_layer_impl.cc

 // 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.
 
 #include "webkit/renderer/compositor_bindings/web_layer_impl.h"
 
 #include "base/bind.h"
 #include "base/debug/trace_event_impl.h"
 #include "base/lazy_instance.h"
 #include "base/strings/string_util.h"
@@ skipping 235 matching lines @@
 }
 
 void WebLayerImpl::setScrollPosition(blink::WebPoint position) {
   layer_->SetScrollOffset(gfx::Point(position).OffsetFromOrigin());
 }
 
 blink::WebPoint WebLayerImpl::scrollPosition() const {
   return gfx::PointAtOffsetFromOrigin(layer_->scroll_offset());
 }
 
-WebSize WebLayerImpl::maxScrollPosition() const {
-  return layer_->MaxScrollOffset();
-}
-
 void WebLayerImpl::setScrollClipLayer(WebLayer* clip_layer) {
   if (!clip_layer) {
     layer_->SetScrollClipLayerId(Layer::INVALID_ID);
     return;
   }
   layer_->SetScrollClipLayerId(clip_layer->id());
 }
 
 bool WebLayerImpl::scrollable() const { return layer_->scrollable(); }
 
@@ skipping 168 matching lines @@
 void WebLayerImpl::setClipParent(blink::WebLayer* parent) {
   cc::Layer* clip_parent = NULL;
   if (parent)
     clip_parent = static_cast<WebLayerImpl*>(parent)->layer();
   layer_->SetClipParent(clip_parent);
 }
 
 Layer* WebLayerImpl::layer() const { return layer_.get(); }
 
 }  // namespace webkit