Update from https://crrev.com/308996

cc/layers/tiled_layer_unittest.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/layers/tiled_layer.h"
 
 #include <limits>
 #include <vector>
 
 #include "base/run_loop.h"
@@ skipping 68 matching lines @@
 class TiledLayerTest : public testing::Test {
  public:
   TiledLayerTest()
       : proxy_(nullptr),
         output_surface_(FakeOutputSurface::Create3d()),
         queue_(make_scoped_ptr(new ResourceUpdateQueue)),
         impl_thread_("ImplThread"),
         occlusion_(nullptr) {
     settings_.max_partial_texture_updates = std::numeric_limits<size_t>::max();
     settings_.layer_transforms_should_scale_layer_contents = true;
+    settings_.verify_property_trees = true;
   }
 
   void SetUp() override {
     impl_thread_.Start();
     shared_bitmap_manager_.reset(new TestSharedBitmapManager());
     layer_tree_host_ = LayerTreeHost::CreateThreaded(
         &synchonous_output_surface_client_, shared_bitmap_manager_.get(),
         nullptr, settings_, base::MessageLoopProxy::current(),
         impl_thread_.message_loop_proxy(), nullptr);
     synchonous_output_surface_client_.SetLayerTreeHost(layer_tree_host_.get());
@@ skipping 1646 matching lines @@
 
   // Rounding leads to an extra pixel.
   gfx::Rect expanded_layer_rect(layer_rect);
   expanded_layer_rect.set_height(32);
   EXPECT_EQ(expanded_layer_rect,
             layer->tracking_layer_painter()->PaintedRect());
 }
 
 }  // namespace
 }  // namespace cc