cc : Clean up cc clip tree

cc/test/fake_layer_tree_host.cc

 // Copyright 2013 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/test/fake_layer_tree_host.h"
 
 #include "base/memory/ptr_util.h"
 #include "base/threading/thread_task_runner_handle.h"
 #include "cc/animation/animation_host.h"
 #include "cc/layers/layer.h"
@@ skipping 17 matching lines @@
   SetTaskRunnerProviderForTesting(TaskRunnerProvider::Create(
       base::ThreadTaskRunnerHandle::Get(), impl_task_runner));
   client_->SetLayerTreeHost(this);
 }
 
 std::unique_ptr<FakeLayerTreeHost> FakeLayerTreeHost::Create(
     FakeLayerTreeHostClient* client,
     TestTaskGraphRunner* task_graph_runner,
     MutatorHost* mutator_host) {
   LayerTreeSettings settings;
-  settings.verify_clip_tree_calculations = true;
   return Create(client, task_graph_runner, mutator_host, settings);
 }
 
 std::unique_ptr<FakeLayerTreeHost> FakeLayerTreeHost::Create(
     FakeLayerTreeHostClient* client,
     TestTaskGraphRunner* task_graph_runner,
     MutatorHost* mutator_host,
     const LayerTreeSettings& settings) {
   return Create(client, task_graph_runner, mutator_host, settings,
                 CompositorMode::SINGLE_THREADED);
@@ skipping 48 matching lines @@
   TreeSynchronizer::PushLayerProperties(root_layer()->layer_tree_host(),
                                         pending_tree());
   mutator_host()->PushPropertiesTo(host_impl_.mutator_host());
 
   pending_tree()->property_trees()->scroll_tree.PushScrollUpdatesFromMainThread(
       property_trees(), pending_tree());
   return pending_tree()->root_layer_for_testing();
 }
 
 }  // namespace cc