cc: Do not allow gesture-scrolling 'overflow[-{x|y}]:hidden' layers.

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/strings/string_util.h"
 #include "cc/animation/animation.h"
 #include "cc/base/region.h"
@@ skipping 233 matching lines @@
 WebSize WebLayerImpl::maxScrollPosition() const {
   return layer_->max_scroll_offset();
 }
 
 void WebLayerImpl::setScrollable(bool scrollable) {
   layer_->SetScrollable(scrollable);
 }
 
 bool WebLayerImpl::scrollable() const { return layer_->scrollable(); }
 
+void WebLayerImpl::setUserScrollable(bool horizontal, bool vertical) {
+  layer_->SetUserScrollable(horizontal, vertical);
+}
+
+bool WebLayerImpl::userScrollableHorizontal() const {
+  return layer_->user_scrollable_horizontal();
+}
+
+bool WebLayerImpl::userScrollableVertical() const {
+  return layer_->user_scrollable_vertical();
+}
+
 void WebLayerImpl::setHaveWheelEventHandlers(bool have_wheel_event_handlers) {
   layer_->SetHaveWheelEventHandlers(have_wheel_event_handlers);
 }
 
 bool WebLayerImpl::haveWheelEventHandlers() const {
   return layer_->have_wheel_event_handlers();
 }
 
 void WebLayerImpl::setShouldScrollOnMainThread(
     bool should_scroll_on_main_thread) {
@@ skipping 125 matching lines @@
 void WebLayerImpl::setClipParent(WebKit::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