cc: Compute animation scale on demand

cc/trees/property_tree_unittest.cc

Index: cc/trees/property_tree_unittest.cc
diff --git a/cc/trees/property_tree_unittest.cc b/cc/trees/property_tree_unittest.cc
index bd773438e8ada694ab8f14b6a858efa4a9cce1af..9fe0f50f83f55ba2b0977dfb1a3b11ace798af14 100644
--- a/cc/trees/property_tree_unittest.cc
+++ b/cc/trees/property_tree_unittest.cc
@@ -38,10 +38,6 @@ TEST(PropertyTreeSerializationTest, TransformNodeDataSerialization) {
   original.affected_by_outer_viewport_bounds_delta_y = false;
   original.in_subtree_of_page_scale_layer = false;
   original.post_local_scale_factor = 0.5f;
-  original.local_maximum_animation_target_scale = 0.6f;
-  original.local_starting_animation_scale = 0.7f;
-  original.combined_maximum_animation_target_scale = 0.8f;
-  original.combined_starting_animation_scale = 0.9f;
   original.sublayer_scale = gfx::Vector2dF(0.5f, 0.5f);
   original.scroll_offset = gfx::ScrollOffset(1.5f, 1.5f);
   original.scroll_snap = gfx::Vector2dF(0.4f, 0.4f);