compositor-worker: blink->cc plumbing

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 a27bd3c8bf6e0d2575138592243cdb29d565bcf1..6bc2a8946005bab0e520b71934c8909d37e0f606 100644
--- a/cc/trees/property_tree_builder.cc
+++ b/cc/trees/property_tree_builder.cc
@@ -9,6 +9,7 @@
 #include <map>
 #include <set>
 
+#include "cc/animation/mutable_properties.h"
 #include "cc/base/math_util.h"
 #include "cc/layers/layer.h"
 #include "cc/layers/layer_impl.h"
@@ -222,6 +223,9 @@ bool AddTransformNodeIfNeeded(
   const bool has_any_transform_animation =
       layer->HasAnyAnimationTargetingProperty(Animation::TRANSFORM);
 
+  const bool has_proxied_transform_related_property =
+      layer->mutable_properties() & MutableProperty::kTransformRelated;
+
   const bool has_surface = created_render_surface;
 
   // A transform node is needed to change the render target for subtree when
@@ -235,6 +239,7 @@ bool AddTransformNodeIfNeeded(
   bool requires_node = is_root || is_scrollable || has_significant_transform ||
                        has_any_transform_animation || has_surface || is_fixed ||
                        is_page_scale_layer || is_overscroll_elasticity_layer ||
+                       has_proxied_transform_related_property ||
                        scroll_child_has_different_target;
 
   LayerType* transform_parent = GetTransformParent(data_from_ancestor, layer);
@@ -559,6 +564,8 @@ bool AddEffectNodeIfNeeded(
   const bool is_root = !layer->parent();
   const bool has_transparency = layer->opacity() != 1.f;
   const bool has_animated_opacity = IsAnimatingOpacity(layer);
+  const bool has_proxied_opacity =
+      layer->mutable_properties() & MutableProperty::kOpacity;
   const bool should_create_render_surface = ShouldCreateRenderSurface(
       layer, data_from_ancestor.compound_transform_since_render_target,
       data_from_ancestor.axis_align_since_render_target);
@@ -566,7 +573,7 @@ bool AddEffectNodeIfNeeded(
       layer->AnimationsPreserveAxisAlignment();
 
   bool requires_node = is_root || has_transparency || has_animated_opacity ||
-                       should_create_render_surface;
+                       has_proxied_opacity || should_create_render_surface;
 
   int parent_id = data_from_ancestor.effect_tree_parent;