Move non-gfx things out of gfx_traits and create a base crate (#32296)

For a long time, `gfx_traits` has held a lot of things unrelated to graphics
and also unrelated to the `gfx` crate (which is mostly about fonts).
This is a cleanup which does a few things:

1. Move non `gfx` crate things out of `gfx_traits`. This is important in
   order to prevent dependency cycles with a different integration between
   layout, script, and fonts.
2. Rename the `msg` crate to `base`. It didn't really contain anything
   to do with messages and instead mostly holds ids, which are used
   across many different crates in Servo. This new crate will hold the
   *rare* data types that are widely used.

Details:

 - All BackgroundHangMonitor-related things from base to a new
   `background_hang_monitor_api` crate.
 - Moved `TraversalDirection` to `script_traits`
 - Moved `Epoch`-related things from `gfx_traits` to `base`.
 - Moved `PrintTree` to base. This should be widely useful in Servo.
 - Moved `WebrenderApi` from `base` to `webrender_traits` and renamed it
   to `WebRenderFontApi`.
This commit is contained in:
Martin Robinson 2024-05-17 14:28:58 +02:00 committed by GitHub
parent 1017533297
commit 3398fc017b
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GPG key ID: B5690EEEBB952194
163 changed files with 709 additions and 632 deletions

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@ -31,10 +31,9 @@ use std::sync::atomic::Ordering;
use std::sync::Arc;
use app_units::Au;
use base::print_tree::PrintTree;
use bitflags::bitflags;
use euclid::default::{Point2D, Rect, Size2D, Vector2D};
use gfx_traits::print_tree::PrintTree;
use gfx_traits::StackingContextId;
use log::debug;
use serde::ser::{SerializeStruct, Serializer};
use serde::Serialize;
@ -54,7 +53,9 @@ use webrender_api::units::LayoutTransform;
use crate::block::{BlockFlow, FormattingContextType};
use crate::context::LayoutContext;
use crate::display_list::items::ClippingAndScrolling;
use crate::display_list::{DisplayListBuildState, StackingContextCollectionState};
use crate::display_list::{
DisplayListBuildState, StackingContextCollectionState, StackingContextId,
};
use crate::flex::FlexFlow;
use crate::floats::{Floats, SpeculatedFloatPlacement};
use crate::flow_list::{FlowList, FlowListIterator, MutFlowListIterator};