Move MaxScrollOffset to property_trees

cc/trees/layer_tree_impl_unittest.cc

Index: cc/trees/layer_tree_impl_unittest.cc
diff --git a/cc/trees/layer_tree_impl_unittest.cc b/cc/trees/layer_tree_impl_unittest.cc
index 393266e9d7f3be9a32160b7fc3852c9147aa71da..32cfe45ebe5df7c20bb6db83dab8ff17128c406e 100644
--- a/cc/trees/layer_tree_impl_unittest.cc
+++ b/cc/trees/layer_tree_impl_unittest.cc
@@ -1679,12 +1679,13 @@ TEST_F(LayerTreeImplTest,
   host_impl().SetViewportSize(scaled_bounds_for_root);
 
   host_impl().active_tree()->SetDeviceScaleFactor(device_scale_factor);
-  host_impl().active_tree()->PushPageScaleFromMainThread(
-      page_scale_factor, page_scale_factor, max_page_scale_factor);
-  host_impl().active_tree()->SetPageScaleOnActiveTree(page_scale_factor);
   host_impl().active_tree()->SetRootLayer(std::move(root));
   host_impl().active_tree()->SetViewportLayersFromIds(Layer::INVALID_ID, 1, 1,
                                                       Layer::INVALID_ID);
+  host_impl().active_tree()->BuildPropertyTreesForTesting();
+  host_impl().active_tree()->PushPageScaleFromMainThread(
+      page_scale_factor, page_scale_factor, max_page_scale_factor);
+  host_impl().active_tree()->SetPageScaleOnActiveTree(page_scale_factor);
   host_impl().UpdateNumChildrenAndDrawPropertiesForActiveTree();
 
   // Sanity check the scenario we just created.
@@ -2244,12 +2245,14 @@ TEST_F(LayerTreeImplTest, SelectionBoundsForScaledLayers) {
   host_impl().SetViewportSize(scaled_bounds_for_root);
 
   host_impl().active_tree()->SetDeviceScaleFactor(device_scale_factor);
-  host_impl().active_tree()->PushPageScaleFromMainThread(
-      page_scale_factor, page_scale_factor, page_scale_factor);
   host_impl().active_tree()->SetPageScaleOnActiveTree(page_scale_factor);
   host_impl().active_tree()->SetRootLayer(std::move(root));
   host_impl().active_tree()->SetViewportLayersFromIds(Layer::INVALID_ID, 1, 1,
                                                       Layer::INVALID_ID);
+  host_impl().active_tree()->BuildPropertyTreesForTesting();
+  host_impl().active_tree()->PushPageScaleFromMainThread(
+      page_scale_factor, page_scale_factor, page_scale_factor);
+  host_impl().active_tree()->SetPageScaleOnActiveTree(page_scale_factor);
   host_impl().UpdateNumChildrenAndDrawPropertiesForActiveTree();
 
   // Sanity check the scenario we just created.