Bug 1463603 - Ensure modified_reset is set when {mutate,take}_reset_struct is called. r=heycam

MozReview-Commit-ID: 8mqVb7kl0ok

--HG--
extra : rebase_source : 3bcefc1e2eeb89483f41ffc630b88e492e323456

servo/components/style/properties/properties.mako.rs

@@ -3199,6 +3199,7 @@ impl<'a> StyleBuilder<'a> {
     % endif
     % endif
     % endfor
+    <% del property %>
 
     /// Inherits style from the parent element, accounting for the default
     /// computed values that need to be provided as well.
@@ -3256,7 +3257,7 @@ impl<'a> StyleBuilder<'a> {
 
         /// Gets a mutable view of the current `${style_struct.name}` style.
         pub fn mutate_${style_struct.name_lower}(&mut self) -> &mut style_structs::${style_struct.name} {
-            % if not property.style_struct.inherited:
+            % if not style_struct.inherited:
             self.modified_reset = true;
             % endif
             self.${style_struct.ident}.mutate()
@@ -3264,7 +3265,7 @@ impl<'a> StyleBuilder<'a> {
 
         /// Gets a mutable view of the current `${style_struct.name}` style.
         pub fn take_${style_struct.name_lower}(&mut self) -> UniqueArc<style_structs::${style_struct.name}> {
-            % if not property.style_struct.inherited:
+            % if not style_struct.inherited:
             self.modified_reset = true;
             % endif
             self.${style_struct.ident}.take()
@@ -3288,6 +3289,7 @@ impl<'a> StyleBuilder<'a> {
                 StyleStructRef::Borrowed(self.reset_style.${style_struct.name_lower}_arc());
         }
     % endfor
+    <% del style_struct %>
 
     /// Returns whether this computed style represents a floated object.
     pub fn floated(&self) -> bool {