servo: Merge #13459 - Use parking_lot::RwLock for PropertyDeclaration…

…Block (from servo:no-arc-heapsize); r=emilio

<!-- Please describe your changes on the following line: -->

As discussed in https://bugzilla.mozilla.org/show_bug.cgi?id=1305141

Closes #13176

---

Original PR title: Stop relying on `impl<T: HeapSizeOf> HeapSizeOf for Arc<T>`
servo/heapsize#37 (comment)

This builds on top of that.

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<!-- Thank you for contributing to Servo! Please replace each `[ ]` by `[X]` when the step is complete, and replace `__` with appropriate data: -->
- [x] `./mach build -d` does not report any errors
- [x] `./mach test-tidy` does not report any errors
- [ ] These changes fix #__ (github issue number if applicable).

<!-- Either: -->
- [ ] There are tests for these changes OR
- [x] These changes do not require tests because refactor

<!-- Pull requests that do not address these steps are welcome, but they will require additional verification as part of the review process. -->

Source-Repo: https://github.com/servo/servo
Source-Revision: aea9545e16fd6ea4a6b1234d1b969457313a5fa7

UltraBlame original commit: 0e74d9fe18cf1cbbab7d7410027a051f94eac90f

servo/components/layout/Cargo.toml

@@ -321,22 +321,11 @@ script_traits
 }
 selectors
 =
-{
-version
-=
 "
 0
 .
 13
 "
-features
-=
-[
-"
-heap_size
-"
-]
-}
 serde_macros
 =
 "

servo/components/plugins/lints/unrooted_must_root.rs

@@ -539,48 +539,6 @@ did
 &
 [
 "
-style
-"
-"
-refcell
-"
-"
-Ref
-"
-]
-)
-|
-|
-match_def_path
-(
-cx
-did
-.
-did
-&
-[
-"
-style
-"
-"
-refcell
-"
-"
-RefMut
-"
-]
-)
-|
-|
-match_def_path
-(
-cx
-did
-.
-did
-&
-[
-"
 core
 "
 "

servo/components/script/Cargo.toml

@@ -486,6 +486,13 @@ open
 .
 1
 "
+parking_lot
+=
+"
+0
+.
+3
+"
 phf
 =
 "
@@ -598,22 +605,11 @@ script_traits
 }
 selectors
 =
-{
-version
-=
 "
 0
 .
 13
 "
-features
-=
-[
-"
-heap_size
-"
-]
-}
 serde
 =
 "

servo/components/script/body.rs

@@ -249,25 +249,25 @@ use
 std
 :
 :
-rc
+cell
 :
 :
-Rc
+Ref
 ;
 use
 std
 :
 :
-str
-;
-use
-style
+rc
 :
 :
-refcell
+Rc
+;
+use
+std
 :
 :
-Ref
+str
 ;
 use
 url

servo/components/script/dom/attr.rs

@@ -220,6 +220,15 @@ use
 std
 :
 :
+cell
+:
+:
+Ref
+;
+use
+std
+:
+:
 mem
 ;
 use
@@ -243,15 +252,6 @@ AttrIdentifier
 AttrValue
 }
 ;
-use
-style
-:
-:
-refcell
-:
-:
-Ref
-;
 /
 /
 https

servo/components/style/domrefcell.rs → servo/components/script/dom/bindings/cell.rs

@@ -68,7 +68,10 @@ the
 DOM
 .
 use
-refcell
+std
+:
+:
+cell
 :
 :
 {
@@ -80,6 +83,9 @@ RefMut
 }
 ;
 use
+style
+:
+:
 thread_state
 ;
 /
@@ -132,22 +138,10 @@ builds
 derive
 (
 Clone
-)
-]
-#
-[
-cfg_attr
-(
-feature
-=
-"
-servo
-"
-derive
-(
+PartialEq
+Debug
 HeapSizeOf
 )
-)
 ]
 pub
 struct

servo/components/script/dom/bindings/mod.rs

@@ -1731,17 +1731,12 @@ html
 )
 .
 pub
-use
-style
-:
-:
-domrefcell
-as
-cell
+mod
+callback
 ;
 pub
 mod
-callback
+cell
 ;
 pub
 mod

servo/components/script/dom/bindings/trace.rs

@@ -443,6 +443,18 @@ dom
 bindings
 :
 :
+cell
+:
+:
+DOMRefCell
+;
+use
+dom
+:
+:
+bindings
+:
+:
 js
 :
 :
@@ -1006,15 +1018,6 @@ use
 style
 :
 :
-domrefcell
-:
-:
-DOMRefCell
-;
-use
-style
-:
-:
 element_state
 :
 :

servo/components/script/dom/characterdata.rs

@@ -258,10 +258,10 @@ text
 Text
 ;
 use
-style
+std
 :
 :
-refcell
+cell
 :
 :
 Ref