[NOT FOR REVIEW]

cc/trees/layer_tree_host_in_process.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_in_process.h"
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include <algorithm>
@@ skipping 637 matching lines @@
                  "LayerTreeHostInProcess::UpdateLayers::BuildPropertyTrees");
     TRACE_EVENT0(
         TRACE_DISABLED_BY_DEFAULT("cc.debug.cdp-perf"),
         "LayerTreeHostInProcessCommon::ComputeVisibleRectsWithPropertyTrees");
     PropertyTreeBuilder::PreCalculateMetaInformation(root_layer);
     bool can_render_to_separate_surface = true;
     PropertyTrees* property_trees = layer_tree_->property_trees();
     if (!settings_.use_layer_lists) {
       // If use_layer_lists is set, then the property trees should have been
       // built by the client already.
+      if (settings_.verify_clip_tree_calculations)
+        PropertyTreeBuilder::BuildPropertyTrees(
+            root_layer, page_scale_layer,
+            layer_tree_->inner_viewport_scroll_layer(),
+            layer_tree_->outer_viewport_scroll_layer(),
+            layer_tree_->overscroll_elasticity_layer(),
+            layer_tree_->elastic_overscroll(), layer_tree_->page_scale_factor(),
+            layer_tree_->device_scale_factor(),
+            gfx::Rect(layer_tree_->device_viewport_size()), identity_transform,
+            layer_tree_->test_property_trees_with_new_clip_tree(), true);
       PropertyTreeBuilder::BuildPropertyTrees(
           root_layer, page_scale_layer,
           layer_tree_->inner_viewport_scroll_layer(),
           layer_tree_->outer_viewport_scroll_layer(),
           layer_tree_->overscroll_elasticity_layer(),
           layer_tree_->elastic_overscroll(), layer_tree_->page_scale_factor(),
           layer_tree_->device_scale_factor(),
           gfx::Rect(layer_tree_->device_viewport_size()), identity_transform,
           property_trees);
       TRACE_EVENT_INSTANT1(
@@ skipping 153 matching lines @@
   return compositor_mode_ == CompositorMode::SINGLE_THREADED;
 }
 
 bool LayerTreeHostInProcess::IsThreaded() const {
   DCHECK(compositor_mode_ != CompositorMode::THREADED ||
          task_runner_provider_->HasImplThread());
   return compositor_mode_ == CompositorMode::THREADED;
 }
 
 }  // namespace cc