cc: Convert backface LTHCommon tests from Layer->LayerImpl

cc/test/layer_tree_host_common_test.cc

 // Copyright 2014 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/layer_tree_host_common_test.h"
 
 #include "cc/layers/layer.h"
 #include "cc/layers/layer_impl.h"
 #include "cc/test/fake_layer_tree_host.h"
 #include "cc/trees/draw_property_utils.h"
@@ skipping 84 matching lines @@
   Layer* page_scale_layer = nullptr;
   Layer* inner_viewport_scroll_layer =
       root_layer->layer_tree_host()->inner_viewport_scroll_layer();
   Layer* outer_viewport_scroll_layer =
       root_layer->layer_tree_host()->outer_viewport_scroll_layer();
   float page_scale_factor = 1.f;
   float device_scale_factor = 1.f;
   gfx::Size device_viewport_size =
       gfx::Size(root_layer->bounds().width() * device_scale_factor,
                 root_layer->bounds().height() * device_scale_factor);
-  LayerList update_layer_list;
   BuildPropertyTreesAndComputeVisibleRects(
       root_layer, page_scale_layer, inner_viewport_scroll_layer,
       outer_viewport_scroll_layer, page_scale_factor, device_scale_factor,
       gfx::Rect(device_viewport_size), identity_transform,
-      root_layer->layer_tree_host()->property_trees(), &update_layer_list);
+      root_layer->layer_tree_host()->property_trees(), &update_layer_list_);
 }
 
 void LayerTreeHostCommonTestBase::
     ExecuteCalculateDrawPropertiesWithPropertyTrees(LayerImpl* root_layer) {
   DCHECK(root_layer->layer_tree_impl());
   LayerTreeHostCommon::PreCalculateMetaInformationForTesting(root_layer);
 
   gfx::Transform identity_transform;
   LayerImpl* page_scale_layer = nullptr;
   LayerImpl* inner_viewport_scroll_layer =
@@ skipping 42 matching lines @@
   inputs.layers_always_allowed_lcd_text = layers_always_allowed_lcd_text;
   inputs.can_adjust_raster_scales = true;
 
   ++render_surface_layer_list_count_;
   inputs.current_render_surface_layer_list_id =
       render_surface_layer_list_count_;
 
   LayerTreeHostCommon::CalculateDrawProperties(&inputs);
 }
 
+bool LayerTreeHostCommonTestBase::UpdateLayerListContains(int id) const {
+  for (size_t i = 0; i < update_layer_list_.size(); ++i) {
+    if (update_layer_list_[i]->id() == id)
+      return true;
+  }
+  return false;
+}
+
 LayerTreeHostCommonTest::LayerTreeHostCommonTest()
     : LayerTreeHostCommonTestBase(LayerTreeSettings()) {
 }
 
 LayerTreeHostCommonTest::LayerTreeHostCommonTest(
     const LayerTreeSettings& settings)
     : LayerTreeHostCommonTestBase(settings) {
 }
 
 }  // namespace cc