layout: Fix merge fallout.

components/layout/construct.rs

@@ -1282,8 +1282,8 @@ impl<'a> FlowConstructor<'a> {
     fn build_flow_for_flex(&mut self, node: &ThreadSafeLayoutNode, float_kind: Option<FloatKind>)
                            -> ConstructionResult {
         let fragment = self.build_fragment_for_block(node);
-        let flow = Box::new(FlexFlow::from_fragment(fragment, float_kind));
-        self.build_flow_for_block_like(FlowRef::new(flow), node)
+        let flow = Arc::new(FlexFlow::from_fragment(fragment, float_kind));
+        self.build_flow_for_block_like(flow, node)
     }
 
     /// Attempts to perform incremental repair to account for recent changes to this node. This

components/layout/display_list_builder.rs

@@ -1898,7 +1898,7 @@ impl FlexFlowDisplayListBuilding for FlexFlow {
                                    display_list: Box<DisplayList>,
                                    layout_context: &LayoutContext) {
         // Draw the rest of the block.
-        self.as_block().build_display_list_for_block(display_list,
+        self.as_mut_block().build_display_list_for_block(display_list,
                                                          layout_context,
                                                          BorderPaintingMode::Separate)
     }

components/layout/flex.rs

@@ -249,7 +249,7 @@ impl FlexFlow {
             kid.assign_block_size_for_inorder_child_if_necessary(layout_context, thread_id);
 
             {
-                let child_fragment = &mut kid.as_block().fragment;
+                let child_fragment = &mut kid.as_mut_block().fragment;
                 // TODO: Percentage block-size
                 let child_specified_block_size =
                     MaybeAuto::from_style(child_fragment.style().content_block_size(),
@@ -285,7 +285,7 @@ impl FlexFlow {
         // Assign the block-size of kid fragments, which is the same value as own block-size.
         for kid in self.block_flow.base.child_iter() {
             {
-                let kid_fragment = &mut kid.as_block().fragment;
+                let kid_fragment = &mut kid.as_mut_block().fragment;
                 let mut position = kid_fragment.border_box;
                 position.size.block = block_size;
                 kid_fragment.border_box = position;
@@ -302,12 +302,13 @@ impl Flow for FlexFlow {
         FlowClass::Flex
     }
 
-    fn as_block<'a>(&'a mut self) -> &'a mut BlockFlow {
+    fn as_mut_block<'a>(&'a mut self) -> &'a mut BlockFlow {
         &mut self.block_flow
     }
 
     fn bubble_inline_sizes(&mut self) {
-        let _scope = layout_debug_scope!("flex::bubble_inline_sizes {:x}", self.block_flow.base.debug_id());
+        let _scope = layout_debug_scope!("flex::bubble_inline_sizes {:x}",
+                                         self.block_flow.base.debug_id());
 
         // Flexbox Section 9.0: Generate anonymous flex items:
         // This part was handled in the flow constructor.

components/layout/flow.rs

@@ -1215,9 +1215,12 @@ impl<'a> ImmutableFlowUtils for &'a Flow {
             },
             FlowClass::Flex => {
                 let fragment =
-                    Fragment::new_anonymous_from_specific_info(node,
+                    Fragment::from_opaque_node_and_style(node.opaque(),
+                                                         PseudoElementType::Normal,
+                                                         style,
+                                                         node.restyle_damage(),
                                                          SpecificFragmentInfo::Generic);
-                box BlockFlow::from_fragment(fragment, None) as Box<Flow>
+                Arc::new(BlockFlow::from_fragment(fragment, None))
             },
             _ => {
                 panic!("no need to generate a missing child")

tests/ref/basic.list

@@ -98,8 +98,8 @@ flaky_cpu == append_style_a.html append_style_b.html
 == first_child_pseudo_a.html first_child_pseudo_b.html
 == first_of_type_pseudo_a.html first_of_type_pseudo_b.html
 == fixed_width_overrides_child_intrinsic_width_a.html fixed_width_overrides_child_intrinsic_width_ref.html
-== flex_column_direction.html flex_column_direction_ref.html
-== flex_row_direction.html flex_row_direction_ref.html
+experimental == flex_column_direction.html flex_column_direction_ref.html
+experimental == flex_row_direction.html flex_row_direction_ref.html
 == float_clearance_a.html float_clearance_ref.html
 == float_clearance_intrinsic_width_a.html float_clearance_intrinsic_width_ref.html
 == float_intrinsic_height.html float_intrinsic_height_ref.html