cc: Compute animation scale on demand

cc/trees/property_tree_builder.cc

Index: cc/trees/property_tree_builder.cc
diff --git a/cc/trees/property_tree_builder.cc b/cc/trees/property_tree_builder.cc
index c86dde4330a5d4983c9389c8167cc069069ef8f9..7f35dd96ef481d61b0bf8f8ddcb38da5e3e2bdc9 100644
--- a/cc/trees/property_tree_builder.cc
+++ b/cc/trees/property_tree_builder.cc
@@ -558,17 +558,6 @@ bool AddTransformNodeIfNeeded(
   node->data.has_potential_animation = has_potentially_animated_transform;
   node->data.is_currently_animating = layer->TransformIsAnimating();
   if (has_potentially_animated_transform) {
-    float maximum_animation_target_scale = 0.f;
-    if (layer->MaximumTargetScale(&maximum_animation_target_scale)) {
-      node->data.local_maximum_animation_target_scale =
-          maximum_animation_target_scale;
-    }
-
-    float starting_animation_scale = 0.f;
-    if (layer->AnimationStartScale(&starting_animation_scale)) {
-      node->data.local_starting_animation_scale = starting_animation_scale;
-    }
-
     node->data.has_only_translation_animations =
         layer->HasOnlyTranslationTransforms();
   }
@@ -1393,6 +1382,7 @@ void PropertyTreeBuilder::BuildPropertyTrees(
       outer_viewport_scroll_layer, overscroll_elasticity_layer,
       elastic_overscroll, page_scale_factor, device_scale_factor, viewport,
       device_transform, property_trees, color);
+  property_trees->ResetCachedData();
 }
 
 }  // namespace cc