diff --git a/components/layout/block.rs b/components/layout/block.rs
index 741d0369daa..ab810c59521 100644
--- a/components/layout/block.rs
+++ b/components/layout/block.rs
@@ -1719,10 +1719,10 @@ impl Flow for BlockFlow {
     ///
     /// Dual fragments consume some inline-size first, and the remainder is assigned to all child
     /// (block) contexts.
-    fn assign_inline_sizes(&mut self, layout_context: &LayoutContext) {
+    fn assign_inline_sizes(&mut self, shared_context: &SharedStyleContext) {
         let _scope = layout_debug_scope!("block::assign_inline_sizes {:x}", self.base.debug_id());
 
-        self.compute_inline_sizes(layout_context.shared_context());
+        self.compute_inline_sizes(shared_context);
 
         // Move in from the inline-start border edge.
         let inline_start_content_edge = self.fragment.border_box.start.i +
@@ -1737,7 +1737,7 @@ impl Flow for BlockFlow {
 
         let content_inline_size = self.fragment.border_box.size.inline - padding_and_borders;
 
-        self.propagate_assigned_inline_size_to_children(layout_context.shared_context(),
+        self.propagate_assigned_inline_size_to_children(shared_context,
                                                         inline_start_content_edge,
                                                         inline_end_content_edge,
                                                         content_inline_size,
diff --git a/components/layout/flex.rs b/components/layout/flex.rs
index 200402cf42f..031ebb03e8b 100644
--- a/components/layout/flex.rs
+++ b/components/layout/flex.rs
@@ -25,9 +25,9 @@ use script_layout_interface::restyle_damage::{REFLOW, REFLOW_OUT_OF_FLOW};
 use std::cmp::max;
 use std::sync::Arc;
 use style::computed_values::flex_direction;
-use style::context::StyleContext;
 use style::logical_geometry::LogicalSize;
 use style::properties::{ComputedValues, ServoComputedValues};
+use style::servo::SharedStyleContext;
 use style::values::computed::{LengthOrPercentage, LengthOrPercentageOrAuto, LengthOrPercentageOrNone};
 
 /// The size of an axis. May be a specified size, a min/max
@@ -185,7 +185,7 @@ impl FlexFlow {
     // Currently, this is the core of BlockFlow::propagate_assigned_inline_size_to_children() with
     // all float and table logic stripped out.
     fn block_mode_assign_inline_sizes(&mut self,
-                                      _layout_context: &LayoutContext,
+                                      _shared_context: &SharedStyleContext,
                                       inline_start_content_edge: Au,
                                       inline_end_content_edge: Au,
                                       content_inline_size: Au) {
@@ -230,7 +230,7 @@ impl FlexFlow {
     // Currently, this is the core of InlineFlow::propagate_assigned_inline_size_to_children() with
     // fragment logic stripped out.
     fn inline_mode_assign_inline_sizes(&mut self,
-                                       _layout_context: &LayoutContext,
+                                       _shared_context: &SharedStyleContext,
                                        inline_start_content_edge: Au,
                                        _inline_end_content_edge: Au,
                                        content_inline_size: Au) {
@@ -403,7 +403,7 @@ impl Flow for FlexFlow {
         }
     }
 
-    fn assign_inline_sizes(&mut self, layout_context: &LayoutContext) {
+    fn assign_inline_sizes(&mut self, shared_context: &SharedStyleContext) {
         let _scope = layout_debug_scope!("flex::assign_inline_sizes {:x}", self.block_flow.base.debug_id());
         debug!("assign_inline_sizes");
 
@@ -414,7 +414,7 @@ impl Flow for FlexFlow {
         // Our inline-size was set to the inline-size of the containing block by the flow's parent.
         // Now compute the real value.
         let containing_block_inline_size = self.block_flow.base.block_container_inline_size;
-        self.block_flow.compute_used_inline_size(layout_context.shared_context(), containing_block_inline_size);
+        self.block_flow.compute_used_inline_size(shared_context, containing_block_inline_size);
         if self.block_flow.base.flags.is_float() {
             self.block_flow.float.as_mut().unwrap().containing_inline_size = containing_block_inline_size
         }
@@ -461,7 +461,7 @@ impl Flow for FlexFlow {
             Mode::Inline => {
                 self.available_main_size = available_inline_size;
                 self.available_cross_size = available_block_size;
-                self.inline_mode_assign_inline_sizes(layout_context,
+                self.inline_mode_assign_inline_sizes(shared_context,
                                                      inline_start_content_edge,
                                                      inline_end_content_edge,
                                                      content_inline_size)
@@ -469,7 +469,7 @@ impl Flow for FlexFlow {
             Mode::Block  => {
                 self.available_main_size = available_block_size;
                 self.available_cross_size = available_inline_size;
-                self.block_mode_assign_inline_sizes(layout_context,
+                self.block_mode_assign_inline_sizes(shared_context,
                                                     inline_start_content_edge,
                                                     inline_end_content_edge,
                                                     content_inline_size)
diff --git a/components/layout/flow.rs b/components/layout/flow.rs
index 64a7c0709ed..73277288e3b 100644
--- a/components/layout/flow.rs
+++ b/components/layout/flow.rs
@@ -194,7 +194,7 @@ pub trait Flow: fmt::Debug + Sync + Send + 'static {
     }
 
     /// Pass 2 of reflow: computes inline-size.
-    fn assign_inline_sizes(&mut self, _ctx: &LayoutContext) {
+    fn assign_inline_sizes(&mut self, _shared_context: &SharedStyleContext) {
         panic!("assign_inline_sizes not yet implemented")
     }
 
diff --git a/components/layout/inline.rs b/components/layout/inline.rs
index d2fa2cc84f4..af1f6c878cd 100644
--- a/components/layout/inline.rs
+++ b/components/layout/inline.rs
@@ -36,6 +36,7 @@ use style::computed_values::{text_overflow, vertical_align, white_space};
 use style::context::StyleContext;
 use style::logical_geometry::{LogicalRect, LogicalSize, WritingMode};
 use style::properties::{ComputedValues, ServoComputedValues};
+use style::servo::SharedStyleContext;
 use style::values::computed::LengthOrPercentage;
 use text;
 use unicode_bidi;
@@ -1349,7 +1350,7 @@ impl Flow for InlineFlow {
 
     /// Recursively (top-down) determines the actual inline-size of child contexts and fragments.
     /// When called on this context, the context has had its inline-size set by the parent context.
-    fn assign_inline_sizes(&mut self, _: &LayoutContext) {
+    fn assign_inline_sizes(&mut self, _: &SharedStyleContext) {
         let _scope = layout_debug_scope!("inline::assign_inline_sizes {:x}", self.base.debug_id());
 
         // Initialize content fragment inline-sizes if they haven't been initialized already.
diff --git a/components/layout/list_item.rs b/components/layout/list_item.rs
index 0e34b324338..f32c3ec873f 100644
--- a/components/layout/list_item.rs
+++ b/components/layout/list_item.rs
@@ -23,9 +23,9 @@ use inline::InlineMetrics;
 use script_layout_interface::restyle_damage::RESOLVE_GENERATED_CONTENT;
 use std::sync::Arc;
 use style::computed_values::{list_style_type, position};
-use style::context::StyleContext;
 use style::logical_geometry::LogicalSize;
 use style::properties::{ComputedValues, ServoComputedValues};
+use style::servo::SharedStyleContext;
 use text;
 
 /// A block with the CSS `display` property equal to `list-item`.
@@ -82,14 +82,14 @@ impl Flow for ListItemFlow {
         self.block_flow.bubble_inline_sizes()
     }
 
-    fn assign_inline_sizes(&mut self, layout_context: &LayoutContext) {
-        self.block_flow.assign_inline_sizes(layout_context);
+    fn assign_inline_sizes(&mut self, shared_context: &SharedStyleContext) {
+        self.block_flow.assign_inline_sizes(shared_context);
 
         let mut marker_inline_start = self.block_flow.fragment.border_box.start.i;
 
         for marker in self.marker_fragments.iter_mut().rev() {
             let containing_block_inline_size = self.block_flow.base.block_container_inline_size;
-            let container_block_size = self.block_flow.explicit_block_containing_size(layout_context.shared_context());
+            let container_block_size = self.block_flow.explicit_block_containing_size(shared_context);
             marker.assign_replaced_inline_size_if_necessary(containing_block_inline_size, container_block_size);
 
             // Do this now. There's no need to do this in bubble-widths, since markers do not
diff --git a/components/layout/multicol.rs b/components/layout/multicol.rs
index 5b35e3ab9e1..e8e974ec5a2 100644
--- a/components/layout/multicol.rs
+++ b/components/layout/multicol.rs
@@ -23,6 +23,7 @@ use std::sync::Arc;
 use style::context::StyleContext;
 use style::logical_geometry::LogicalSize;
 use style::properties::{ComputedValues, ServoComputedValues};
+use style::servo::SharedStyleContext;
 use style::values::computed::{LengthOrPercentageOrAuto, LengthOrPercentageOrNone};
 use util::print_tree::PrintTree;
 
@@ -77,9 +78,9 @@ impl Flow for MulticolFlow {
         self.block_flow.bubble_inline_sizes();
     }
 
-    fn assign_inline_sizes(&mut self, layout_context: &LayoutContext) {
+    fn assign_inline_sizes(&mut self, shared_context: &SharedStyleContext) {
         debug!("assign_inline_sizes({}): assigning inline_size for flow", "multicol");
-        self.block_flow.compute_inline_sizes(layout_context.shared_context());
+        self.block_flow.compute_inline_sizes(shared_context);
 
         // Move in from the inline-start border edge.
         let inline_start_content_edge = self.block_flow.fragment.border_box.start.i +
@@ -90,7 +91,7 @@ impl Flow for MulticolFlow {
             self.block_flow.fragment.margin.inline_end +
             self.block_flow.fragment.border_padding.inline_end;
 
-        self.block_flow.assign_inline_sizes(layout_context);
+        self.block_flow.assign_inline_sizes(shared_context);
         let padding_and_borders = self.block_flow.fragment.border_padding.inline_start_end();
         let content_inline_size =
             self.block_flow.fragment.border_box.size.inline - padding_and_borders;
@@ -119,7 +120,7 @@ impl Flow for MulticolFlow {
         self.block_flow.fragment.border_box.size.inline = content_inline_size + padding_and_borders;
 
         self.block_flow.propagate_assigned_inline_size_to_children(
-            layout_context.shared_context(), inline_start_content_edge, inline_end_content_edge, column_width,
+            shared_context, inline_start_content_edge, inline_end_content_edge, column_width,
             |_, _, _, _, _, _| {});
     }
 
@@ -237,9 +238,9 @@ impl Flow for MulticolColumnFlow {
         self.block_flow.bubble_inline_sizes();
     }
 
-    fn assign_inline_sizes(&mut self, layout_context: &LayoutContext) {
+    fn assign_inline_sizes(&mut self, shared_context: &SharedStyleContext) {
         debug!("assign_inline_sizes({}): assigning inline_size for flow", "multicol column");
-        self.block_flow.assign_inline_sizes(layout_context);
+        self.block_flow.assign_inline_sizes(shared_context);
     }
 
     fn assign_block_size<'a>(&mut self, ctx: &'a LayoutContext<'a>) {
diff --git a/components/layout/table.rs b/components/layout/table.rs
index fa91db53c36..0299d9b9b01 100644
--- a/components/layout/table.rs
+++ b/components/layout/table.rs
@@ -25,7 +25,6 @@ use std::cmp;
 use std::fmt;
 use std::sync::Arc;
 use style::computed_values::{border_collapse, border_spacing, table_layout};
-use style::context::StyleContext;
 use style::logical_geometry::LogicalSize;
 use style::properties::{ComputedValues, ServoComputedValues};
 use style::servo::SharedStyleContext;
@@ -326,7 +325,7 @@ impl Flow for TableFlow {
 
     /// Recursively (top-down) determines the actual inline-size of child contexts and fragments.
     /// When called on this context, the context has had its inline-size set by the parent context.
-    fn assign_inline_sizes(&mut self, layout_context: &LayoutContext) {
+    fn assign_inline_sizes(&mut self, shared_context: &SharedStyleContext) {
         let _scope = layout_debug_scope!("table::assign_inline_sizes {:x}",
                                             self.block_flow.base.debug_id());
         debug!("assign_inline_sizes({}): assigning inline_size for flow", "table");
@@ -349,7 +348,7 @@ impl Flow for TableFlow {
             border_collapse: self.block_flow.fragment.style.get_inheritedtable().border_collapse,
         };
         inline_size_computer.compute_used_inline_size(&mut self.block_flow,
-                                                      layout_context.shared_context(),
+                                                      shared_context,
                                                       containing_block_inline_size);
 
         let inline_start_content_edge = self.block_flow.fragment.border_padding.inline_start;
@@ -400,7 +399,7 @@ impl Flow for TableFlow {
             &self.collapsed_inline_direction_border_widths_for_table;
         let mut collapsed_block_direction_border_widths_for_table =
             self.collapsed_block_direction_border_widths_for_table.iter().peekable();
-        self.block_flow.propagate_assigned_inline_size_to_children(layout_context.shared_context(),
+        self.block_flow.propagate_assigned_inline_size_to_children(shared_context,
                                                                    inline_start_content_edge,
                                                                    inline_end_content_edge,
                                                                    content_inline_size,
diff --git a/components/layout/table_caption.rs b/components/layout/table_caption.rs
index 1c24491d06d..ad7c43d3f99 100644
--- a/components/layout/table_caption.rs
+++ b/components/layout/table_caption.rs
@@ -19,6 +19,7 @@ use std::fmt;
 use std::sync::Arc;
 use style::logical_geometry::LogicalSize;
 use style::properties::ServoComputedValues;
+use style::servo::SharedStyleContext;
 use util::print_tree::PrintTree;
 
 /// A table formatting context.
@@ -55,9 +56,9 @@ impl Flow for TableCaptionFlow {
         self.block_flow.bubble_inline_sizes();
     }
 
-    fn assign_inline_sizes(&mut self, ctx: &LayoutContext) {
+    fn assign_inline_sizes(&mut self, shared_context: &SharedStyleContext) {
         debug!("assign_inline_sizes({}): assigning inline_size for flow", "table_caption");
-        self.block_flow.assign_inline_sizes(ctx);
+        self.block_flow.assign_inline_sizes(shared_context);
     }
 
     fn assign_block_size<'a>(&mut self, layout_context: &'a LayoutContext<'a>) {
diff --git a/components/layout/table_cell.rs b/components/layout/table_cell.rs
index 833a044951c..8b6db89ff38 100644
--- a/components/layout/table_cell.rs
+++ b/components/layout/table_cell.rs
@@ -23,9 +23,9 @@ use script_layout_interface::wrapper_traits::ThreadSafeLayoutNode;
 use std::fmt;
 use std::sync::Arc;
 use style::computed_values::{border_collapse, border_top_style, vertical_align};
-use style::context::StyleContext;
 use style::logical_geometry::{LogicalMargin, LogicalRect, LogicalSize, WritingMode};
 use style::properties::{ComputedValues, ServoComputedValues};
+use style::servo::SharedStyleContext;
 use table::InternalTable;
 use table_row::{CollapsedBorder, CollapsedBorderProvenance};
 use util::print_tree::PrintTree;
@@ -163,7 +163,7 @@ impl Flow for TableCellFlow {
     /// Recursively (top-down) determines the actual inline-size of child contexts and fragments.
     /// When called on this context, the context has had its inline-size set by the parent table
     /// row.
-    fn assign_inline_sizes(&mut self, layout_context: &LayoutContext) {
+    fn assign_inline_sizes(&mut self, shared_context: &SharedStyleContext) {
         let _scope = layout_debug_scope!("table_cell::assign_inline_sizes {:x}",
                                             self.block_flow.base.debug_id());
         debug!("assign_inline_sizes({}): assigning inline_size for flow", "table_cell");
@@ -175,7 +175,7 @@ impl Flow for TableCellFlow {
             border_collapse: self.block_flow.fragment.style.get_inheritedtable().border_collapse,
         };
         inline_size_computer.compute_used_inline_size(&mut self.block_flow,
-                                                      layout_context.shared_context(),
+                                                      shared_context,
                                                       containing_block_inline_size);
 
         let inline_start_content_edge =
@@ -189,7 +189,7 @@ impl Flow for TableCellFlow {
         let content_inline_size =
             self.block_flow.fragment.border_box.size.inline - padding_and_borders;
 
-        self.block_flow.propagate_assigned_inline_size_to_children(layout_context.shared_context(),
+        self.block_flow.propagate_assigned_inline_size_to_children(shared_context,
                                                                    inline_start_content_edge,
                                                                    inline_end_content_edge,
                                                                    content_inline_size,
diff --git a/components/layout/table_colgroup.rs b/components/layout/table_colgroup.rs
index 6dce7bd56d1..f1041e24107 100644
--- a/components/layout/table_colgroup.rs
+++ b/components/layout/table_colgroup.rs
@@ -20,6 +20,7 @@ use std::fmt;
 use std::sync::Arc;
 use style::logical_geometry::LogicalSize;
 use style::properties::ServoComputedValues;
+use style::servo::SharedStyleContext;
 use style::values::computed::LengthOrPercentageOrAuto;
 
 /// A table formatting context.
@@ -81,7 +82,7 @@ impl Flow for TableColGroupFlow {
 
     /// Table column inline-sizes are assigned in the table flow and propagated to table row flows
     /// and/or rowgroup flows. Therefore, table colgroup flows do not need to assign inline-sizes.
-    fn assign_inline_sizes(&mut self, _: &LayoutContext) {
+    fn assign_inline_sizes(&mut self, _: &SharedStyleContext) {
     }
 
     /// Table columns do not have block-size.
diff --git a/components/layout/table_row.rs b/components/layout/table_row.rs
index 1398b3ec91d..b8835d493ef 100644
--- a/components/layout/table_row.rs
+++ b/components/layout/table_row.rs
@@ -25,9 +25,9 @@ use std::fmt;
 use std::iter::{Enumerate, IntoIterator, Peekable};
 use std::sync::Arc;
 use style::computed_values::{border_collapse, border_spacing, border_top_style};
-use style::context::StyleContext;
 use style::logical_geometry::{LogicalSize, PhysicalSide, WritingMode};
 use style::properties::{ComputedValues, ServoComputedValues};
+use style::servo::SharedStyleContext;
 use style::values::computed::LengthOrPercentageOrAuto;
 use table::{ColumnComputedInlineSize, ColumnIntrinsicInlineSize, InternalTable, VecExt};
 use table_cell::{CollapsedBordersForCell, TableCellFlow};
@@ -312,7 +312,7 @@ impl Flow for TableRowFlow {
                                                                                 pref_inline_size);
     }
 
-    fn assign_inline_sizes(&mut self, layout_context: &LayoutContext) {
+    fn assign_inline_sizes(&mut self, shared_context: &SharedStyleContext) {
         let _scope = layout_debug_scope!("table_row::assign_inline_sizes {:x}",
                                          self.block_flow.base.debug_id());
         debug!("assign_inline_sizes({}): assigning inline_size for flow", "table_row");
@@ -328,7 +328,7 @@ impl Flow for TableRowFlow {
             border_collapse: self.block_flow.fragment.style.get_inheritedtable().border_collapse,
         };
         inline_size_computer.compute_used_inline_size(&mut self.block_flow,
-                                                      layout_context.shared_context(),
+                                                      shared_context,
                                                       containing_block_inline_size);
 
         // Spread out the completed inline sizes among columns with spans > 1.
@@ -381,7 +381,7 @@ impl Flow for TableRowFlow {
         let spacing = self.spacing;
         let row_writing_mode = self.block_flow.base.writing_mode;
         let table_writing_mode = self.table_writing_mode;
-        self.block_flow.propagate_assigned_inline_size_to_children(layout_context.shared_context(),
+        self.block_flow.propagate_assigned_inline_size_to_children(shared_context,
                                                                    inline_start_content_edge,
                                                                    inline_end_content_edge,
                                                                    containing_block_inline_size,
diff --git a/components/layout/table_rowgroup.rs b/components/layout/table_rowgroup.rs
index f03103ba87c..91dcb0f00a2 100644
--- a/components/layout/table_rowgroup.rs
+++ b/components/layout/table_rowgroup.rs
@@ -21,9 +21,9 @@ use std::fmt;
 use std::iter::{IntoIterator, Iterator, Peekable};
 use std::sync::Arc;
 use style::computed_values::{border_collapse, border_spacing};
-use style::context::StyleContext;
 use style::logical_geometry::{LogicalSize, WritingMode};
 use style::properties::{ComputedValues, ServoComputedValues};
+use style::servo::SharedStyleContext;
 use table::{ColumnComputedInlineSize, ColumnIntrinsicInlineSize, InternalTable, TableLikeFlow};
 use table_row;
 use util::print_tree::PrintTree;
@@ -140,7 +140,7 @@ impl Flow for TableRowGroupFlow {
 
     /// Recursively (top-down) determines the actual inline-size of child contexts and fragments.
     /// When called on this context, the context has had its inline-size set by the parent context.
-    fn assign_inline_sizes(&mut self, layout_context: &LayoutContext) {
+    fn assign_inline_sizes(&mut self, shared_context: &SharedStyleContext) {
         let _scope = layout_debug_scope!("table_rowgroup::assign_inline_sizes {:x}",
                                             self.block_flow.base.debug_id());
         debug!("assign_inline_sizes({}): assigning inline_size for flow", "table_rowgroup");
@@ -155,7 +155,7 @@ impl Flow for TableRowGroupFlow {
             border_collapse: border_collapse,
         };
         inline_size_computer.compute_used_inline_size(&mut self.block_flow,
-                                                      layout_context.shared_context(),
+                                                      shared_context,
                                                       containing_block_inline_size);
 
         let column_computed_inline_sizes = &self.column_computed_inline_sizes;
@@ -165,7 +165,7 @@ impl Flow for TableRowGroupFlow {
             &self.collapsed_inline_direction_border_widths_for_table;
         let mut collapsed_block_direction_border_widths_for_table =
             self.collapsed_block_direction_border_widths_for_table.iter().peekable();
-        self.block_flow.propagate_assigned_inline_size_to_children(layout_context.shared_context(),
+        self.block_flow.propagate_assigned_inline_size_to_children(shared_context,
                                                                    inline_start_content_edge,
                                                                    inline_end_content_edge,
                                                                    content_inline_size,
diff --git a/components/layout/table_wrapper.rs b/components/layout/table_wrapper.rs
index a3fab380ae0..c331cd9ee2a 100644
--- a/components/layout/table_wrapper.rs
+++ b/components/layout/table_wrapper.rs
@@ -30,7 +30,6 @@ use std::fmt;
 use std::ops::Add;
 use std::sync::Arc;
 use style::computed_values::{border_collapse, table_layout};
-use style::context::StyleContext;
 use style::logical_geometry::LogicalSize;
 use style::properties::{ComputedValues, ServoComputedValues};
 use style::servo::SharedStyleContext;
@@ -321,7 +320,7 @@ impl Flow for TableWrapperFlow {
         self.block_flow.bubble_inline_sizes();
     }
 
-    fn assign_inline_sizes(&mut self, layout_context: &LayoutContext) {
+    fn assign_inline_sizes(&mut self, shared_context: &SharedStyleContext) {
         debug!("assign_inline_sizes({}): assigning inline_size for flow",
                if self.block_flow.base.flags.is_float() {
                    "floated table_wrapper"
@@ -346,7 +345,7 @@ impl Flow for TableWrapperFlow {
                 containing_block_inline_size;
         }
 
-        self.compute_used_inline_size(layout_context.shared_context(),
+        self.compute_used_inline_size(shared_context,
                                       containing_block_inline_size,
                                       &intermediate_column_inline_sizes);
 
@@ -376,7 +375,7 @@ impl Flow for TableWrapperFlow {
         match assigned_column_inline_sizes {
             None => {
                 self.block_flow
-                    .propagate_assigned_inline_size_to_children(layout_context.shared_context(),
+                    .propagate_assigned_inline_size_to_children(shared_context,
                                                                 inline_start_content_edge,
                                                                 inline_end_content_edge,
                                                                 content_inline_size,
@@ -384,7 +383,7 @@ impl Flow for TableWrapperFlow {
             }
             Some(ref assigned_column_inline_sizes) => {
                 self.block_flow
-                    .propagate_assigned_inline_size_to_children(layout_context.shared_context(),
+                    .propagate_assigned_inline_size_to_children(shared_context,
                                                                 inline_start_content_edge,
                                                                 inline_end_content_edge,
                                                                 content_inline_size,
diff --git a/components/layout/traversal.rs b/components/layout/traversal.rs
index 0571f903ea4..bae8ecc355f 100644
--- a/components/layout/traversal.rs
+++ b/components/layout/traversal.rs
@@ -174,7 +174,7 @@ pub struct AssignISizes<'a> {
 impl<'a> PreorderFlowTraversal for AssignISizes<'a> {
     #[inline]
     fn process(&self, flow: &mut Flow) {
-        flow.assign_inline_sizes(self.layout_context);
+        flow.assign_inline_sizes(self.layout_context.shared_context());
     }
 
     #[inline]