Remove flag to disable cc touch hit testing.

cc/trees/layer_tree_host_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 "cc/trees/layer_tree_host_impl.h"
 
 #include <algorithm>
 #include <limits>
 
 #include "base/basictypes.h"
@@ skipping 465 matching lines @@
       active_tree_->FindLayerThatIsHitByPoint(device_viewport_point);
 
   bool scroll_on_main_thread = false;
   LayerImpl* scrolling_layer_impl = FindScrollLayerForDeviceViewportPoint(
       device_viewport_point, type, layer_impl, &scroll_on_main_thread, NULL);
   return CurrentlyScrollingLayer() == scrolling_layer_impl;
 }
 
 bool LayerTreeHostImpl::HaveTouchEventHandlersAt(
     const gfx::Point& viewport_point) {
-  if (!settings_.touch_hit_testing)
-    return true;
 
   gfx::PointF device_viewport_point =
       gfx::ScalePoint(viewport_point, device_scale_factor_);
 
   LayerImpl* layer_impl =
       active_tree_->FindLayerThatIsHitByPointInTouchHandlerRegion(
           device_viewport_point);
 
   return layer_impl != NULL;
 }
@@ skipping 2743 matching lines @@
 }
 
 void LayerTreeHostImpl::UnregisterPictureLayerImpl(PictureLayerImpl* layer) {
   std::vector<PictureLayerImpl*>::iterator it =
       std::find(picture_layers_.begin(), picture_layers_.end(), layer);
   DCHECK(it != picture_layers_.end());
   picture_layers_.erase(it);
 }
 
 }  // namespace cc