Lint layout_2013 with clippy (#31221)

* Lint layout_2013 with clippy

CARGO_BUILD_RUSTC=rustc cargo clippy --fix -p layout_2013 --broken-code

* ./mach fmt

* Cosmetic adjustments

1 files changed, 9 insertions, 16 deletions

diff --git a/components/layout/sequential.rs b/components/layout/sequential.rs
index 44067b4a791..b641481a32a 100644
--- a/components/layout/sequential.rs
+++ b/components/layout/sequential.rs
@@ -26,7 +26,7 @@ use crate::traversal::{
 };
 
 pub fn resolve_generated_content(root: &mut dyn Flow, layout_context: &LayoutContext) {
-    ResolveGeneratedContent::new(&layout_context).traverse(root, 0);
+    ResolveGeneratedContent::new(layout_context).traverse(root, 0);
 }
 
 /// Run the main layout passes sequentially.
@@ -59,18 +59,12 @@ pub fn reflow(root: &mut dyn Flow, layout_context: &LayoutContext, relayout_mode
     }
 
     if opts::get().debug.bubble_inline_sizes_separately {
-        let bubble_inline_sizes = BubbleISizes {
-            layout_context: &layout_context,
-        };
+        let bubble_inline_sizes = BubbleISizes { layout_context };
         bubble_inline_sizes.traverse(root);
     }
 
-    let assign_inline_sizes = AssignISizes {
-        layout_context: &layout_context,
-    };
-    let assign_block_sizes = AssignBSizes {
-        layout_context: &layout_context,
-    };
+    let assign_inline_sizes = AssignISizes { layout_context };
+    let assign_block_sizes = AssignBSizes { layout_context };
 
     doit(root, assign_inline_sizes, assign_block_sizes, relayout_mode);
 }
@@ -104,7 +98,7 @@ pub fn build_display_list_for_subtree<'a>(
         },
     )));
 
-    let mut build_display_list = BuildDisplayList { state: state };
+    let mut build_display_list = BuildDisplayList { state };
     build_display_list.traverse(flow_root);
     build_display_list.state
 }
@@ -133,11 +127,10 @@ pub fn iterate_through_flow_tree_fragment_border_boxes(
                     .stacking_relative_border_box(CoordinateSystem::Own);
                 if let Some(matrix) = kid.as_block().fragment.transform_matrix(&relative_position) {
                     let transform_matrix = matrix.transform_point2d(LayoutPoint::zero()).unwrap();
-                    stacking_context_position = stacking_context_position +
-                        Vector2D::new(
-                            Au::from_f32_px(transform_matrix.x),
-                            Au::from_f32_px(transform_matrix.y),
-                        )
+                    stacking_context_position += Vector2D::new(
+                        Au::from_f32_px(transform_matrix.x),
+                        Au::from_f32_px(transform_matrix.y),
+                    )
                 }
             }
             doit(kid, level + 1, iterator, &stacking_context_position);