cc: Commit property trees to the compositor thread

cc/layers/layer.h

Index: cc/layers/layer.h
diff --git a/cc/layers/layer.h b/cc/layers/layer.h
index 4eb5e8173a6580bb152dec52c87a7ca359e12ab9..1f8da7e68e99d0748689d40412dc87ad0fd07ff6 100644
--- a/cc/layers/layer.h
+++ b/cc/layers/layer.h
@@ -477,6 +477,7 @@ class CC_EXPORT Layer : public base::RefCounted<Layer>,
   void Set3dSortingContextId(int id);
   int sorting_context_id() const { return sorting_context_id_; }
 
+  // TODO(enne): should these set needs push properties?

[ajuma, 2015/04/16 21:58:14]

I think they'll need to, since they could change without anything else setting
needs push properties on this layer.

[enne (OOO), 2015/04/16 22:16:54]

Done.  I didn't add any "if (new != old) push" logic, since these things really
only get set during a tree rebuild, so there's probably other pushing happening.
 I can add conditionals if y'all think that's best.

   void set_transform_tree_index(int index) { transform_tree_index_ = index; }
   void set_clip_tree_index(int index) { clip_tree_index_ = index; }
   void set_opacity_tree_index(int index) { opacity_tree_index_ = index; }
@@ -504,15 +505,12 @@ class CC_EXPORT Layer : public base::RefCounted<Layer>,
     visible_rect_from_property_trees_ = rect;
   }
 
-  gfx::Transform screen_space_transform_from_property_trees(
-      const TransformTree& tree) const;
-  gfx::Transform draw_transform_from_property_trees(
-      const TransformTree& tree) const;
-  float DrawOpacityFromPropertyTrees(const OpacityTree& tree) const;
-
   void set_should_flatten_transform_from_property_tree(bool should_flatten) {
     should_flatten_transform_from_property_tree_ = should_flatten;
   }
+  bool should_flatten_transform_from_property_tree() const {
+    return should_flatten_transform_from_property_tree_;
+  }
 
   // TODO(vollick): These values are temporary and will be removed as soon as
   // render surface determinations are moved out of CDP. They only exist because