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layout: Report memory usage for fragment and box trees. (#36553)

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Add memory reporter integration for the fragment and box trees that are
persisted in the layout thread.

Testing: Looked at the numbers for https://servo.org and
https://html.spec.whatwg.org/. The former was very small, but the latter
was 700mb.

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Signed-off-by: Josh Matthews <josh@joshmatthews.net>
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Josh Matthews 2025-04-18 16:05:15 -04:00 • committed by GitHub
parent add8c51f47
commit c787688afc
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33 changed files with 230 additions and 69 deletions
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2
components/layout_2020/fragment_tree/fragment_tree.rs
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@ -7,6 +7,7 @@ use base::print_tree::PrintTree;
use compositing_traits::display_list::AxesScrollSensitivity;
use euclid::default::{Point2D, Rect, Size2D};
use fxhash::FxHashSet;
use malloc_size_of_derive::MallocSizeOf;
use style::animation::AnimationSetKey;
use style::dom::OpaqueNode;
use webrender_api::units;
@ -16,6 +17,7 @@ use crate::display_list::StackingContext;
use crate::flow::CanvasBackground;
use crate::geom::{PhysicalPoint, PhysicalRect};
#[derive(MallocSizeOf)]
pub struct FragmentTree {
/// Fragments at the top-level of the tree.
///