Use *const AtomicUsize rather than *mut AtomicUsize in WorkQueue.
Atomics use internal mutability, so this *mut is at best confusing.
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Account for the font of empty input fields
The font of empty fragments is not accounted for in layout. This behavior is incorrect when part of an input field.
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- [X] These changes fix#11653
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Add pkg-config dep for ArchLinux
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Add pkg-config to readme.
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Without this package, I get this error:
```
Compiling servo-freetype-sys v2.4.11
Build failed, waiting for other jobs to finish...
error: failed to run custom build command for `dbus v0.3.3`
Process didn't exit successfully: `/dsk/src/servo/target/release/build/dbus-7f7af798babde0c1/build-script-build` (exit code: 101)
--- stderr
thread 'main' panicked at 'called `Result::unwrap()` on an `Err` value: "Failed to run `\"pkg-config\" \"--libs\" \"--cflags\" \"dbus-1\"`: No such file or directory (os error 2)"', ../src/libcore/result.rs:785
note: Run with `RUST_BACKTRACE=1` for a backtrace.
[Warning] Could not generate notification! Optional Python module 'dbus' is not installed.
Build completed in 0:05:27
```
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Silent some warnings
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- [X] `./mach test-tidy` does not report any errors
- [X] These changes do not require tests because only silent some warnings
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Enable history interface tests
This is needed for #10992.
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Without this package, I get this error:
```
Compiling servo-freetype-sys v2.4.11
Build failed, waiting for other jobs to finish...
error: failed to run custom build command for `dbus v0.3.3`
Process didn't exit successfully: `/dsk/src/servo/target/release/build/dbus-7f7af798babde0c1/build-script-build` (exit code: 101)
--- stderr
thread 'main' panicked at 'called `Result::unwrap()` on an `Err` value: "Failed to run `\"pkg-config\" \"--libs\" \"--cflags\" \"dbus-1\"`: No such file or directory (os error 2)"', ../src/libcore/result.rs:785
note: Run with `RUST_BACKTRACE=1` for a backtrace.
[Warning] Could not generate notification! Optional Python module 'dbus' is not installed.
Build completed in 0:05:27
```
Alignment is wrong.
Fix off-alignment.
---
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- [X] These changes do not fix any particular issue number
- [X] These changes do not require tests because refactoring
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Issue #11388: --debug and --browserhtml are not exclusive in 'mach run'.
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Fix ./mach run --debug --browserhtml
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Update Blob::{new, new_inherited} to take Strings
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Added DoubleEndedIterator for MutFlowListIterator
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Added DoubleEndedIterator for MutFlowListIterator
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Implement Blob URL's DOM interfaces
r? @Manishearth
Implement the two functions in `URL` to create/revoke Blob URLs, and related code to approximate our proposed design to make things work together.
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- [x] These changes fix part of #10539, related to #11131
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Remove unused XHR method
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Remove unused XHR method.
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Implement non-visible pipeline and iframe visibility methods
This addresses #9566 and a good part of #9751, specifically:
* Pipeline has a notion of visibility
* IFrame setVisible/getVisible interface with IFrame's pipeline visibility
* IFrame mozbrowservisibilitychange responds to changes in visibility
* Pipeline visibility is used to limit animations (requestAnimationFrame does not tick animations when hidden) and to increase timer intervals (currently set to a minimum of 1 second while hidden)
Absent for now are any changes to the Document API and general implementation of the Page Visibility API, since the more interesting parts require knowledge of whether the user agent is minimized, OS screen locked, etc.
cc @paulrouget @jdm
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stylo: Support the rest of the background-xxx P1 properties.
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We do the same that with background-{image, repeat}, we just use the first
element until servo can parse and use a list efficiently.
cc/r? @mbrubeck @bholley @heycam
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