Rebuild property_tree after LayerImpl::SetTransform() is called in tests

cc/trees/layer_tree_host_common_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/trees/layer_tree_host_common.h"
 
 #include <algorithm>
 #include <set>
 
 #include "cc/animation/layer_animation_controller.h"
@@ skipping 8209 matching lines @@
   EXPECT_EQ(
       0.f, grand_child_raw->draw_properties().maximum_animation_contents_scale);
 
   child_raw->layer_animation_controller()->AbortAnimations(
       Animation::TRANSFORM);
 
   gfx::Transform scale_matrix;
   scale_matrix.Scale(1.f, 2.f);
   grand_parent->SetTransform(scale_matrix);
   parent_raw->SetTransform(scale_matrix);
+  grand_parent->layer_tree_impl()->property_trees()->needs_rebuild = true;
   AddAnimatedTransformToLayer(parent_raw, 1.0, TransformOperations(), scale);
   ExecuteCalculateDrawProperties(grand_parent.get());
 
   // |grand_parent| and |parent| each have scale 2.f. |parent| has a  scale
   // animation with maximum scale 5.f.
   EXPECT_EQ(0.f,
             grand_parent->draw_properties().maximum_animation_contents_scale);
   EXPECT_EQ(10.f,
             parent_raw->draw_properties().maximum_animation_contents_scale);
   EXPECT_EQ(10.f,
             child_raw->draw_properties().maximum_animation_contents_scale);
   EXPECT_EQ(
       10.f,
       grand_child_raw->draw_properties().maximum_animation_contents_scale);
 
   gfx::Transform perspective_matrix;
   perspective_matrix.ApplyPerspectiveDepth(2.f);
   child_raw->SetTransform(perspective_matrix);
+  grand_parent->layer_tree_impl()->property_trees()->needs_rebuild = true;
   ExecuteCalculateDrawProperties(grand_parent.get());
 
   // |child| has a transform that's neither a translation nor a scale.
   EXPECT_EQ(0.f,
             grand_parent->draw_properties().maximum_animation_contents_scale);
   EXPECT_EQ(10.f,
             parent_raw->draw_properties().maximum_animation_contents_scale);
   EXPECT_EQ(0.f, child_raw->draw_properties().maximum_animation_contents_scale);
   EXPECT_EQ(
       0.f, grand_child_raw->draw_properties().maximum_animation_contents_scale);
 
   parent_raw->SetTransform(perspective_matrix);
+  grand_parent->layer_tree_impl()->property_trees()->needs_rebuild = true;
   ExecuteCalculateDrawProperties(grand_parent.get());
 
   // |parent| and |child| have transforms that are neither translations nor
   // scales.
   EXPECT_EQ(0.f,
             grand_parent->draw_properties().maximum_animation_contents_scale);
   EXPECT_EQ(0.f,
             parent_raw->draw_properties().maximum_animation_contents_scale);
   EXPECT_EQ(0.f, child_raw->draw_properties().maximum_animation_contents_scale);
   EXPECT_EQ(
       0.f, grand_child_raw->draw_properties().maximum_animation_contents_scale);
 
   parent_raw->SetTransform(identity_matrix);
   child_raw->SetTransform(identity_matrix);
   grand_parent->SetTransform(perspective_matrix);
+  grand_parent->layer_tree_impl()->property_trees()->needs_rebuild = true;
 
   ExecuteCalculateDrawProperties(grand_parent.get());
 
   // |grand_parent| has a transform that's neither a translation nor a scale.
   EXPECT_EQ(0.f,
             grand_parent->draw_properties().maximum_animation_contents_scale);
   EXPECT_EQ(0.f,
             parent_raw->draw_properties().maximum_animation_contents_scale);
   EXPECT_EQ(0.f, child_raw->draw_properties().maximum_animation_contents_scale);
   EXPECT_EQ(
@@ skipping 1423 matching lines @@
   EXPECT_FALSE(root->layer_or_descendant_is_drawn());
   EXPECT_FALSE(root->visited());
   EXPECT_FALSE(root->sorted_for_recursion());
   EXPECT_FALSE(child->layer_or_descendant_is_drawn());
   EXPECT_FALSE(child->visited());
   EXPECT_FALSE(child->sorted_for_recursion());
 }
 
 }  // namespace
 }  // namespace cc