Without this `./mach run -b -- -M` would start fine but navigating to a site would fail with:
`thread 'ScriptThread PipelineId { namespace_id: PipelineNamespaceId(0), index: PipelineIndex(0) }' panicked at 'assertion failed: mozbrowser_enabled()', /Users/ulf/Documents/Code/servo/components/script/dom/htmliframeelement.rs:163`
layout: Make child stacking contexts of fixed position stacking contexts also fixed position.
Improves YouTube.
Improves the Washington Post.
Closes#10526.
r? @glennw
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gfx: Clamp the font size we supply to Core Text to 0.01pt.
Core Text treats a font size of 0.0 as 12.0, which is obviously not what
we want.
Improves Twitter.
Improves Reddit /r/rust.
Closes#10492.
r? @mbrubeck
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Implement flexbox reordering
Add style property for `order` and implement reordering by this property
in flex flow. Based on previous work by @zentner-kyle.
Fixes: #9957
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Use better JS engine defaults
This adds in preferences for all the SM 39 available options (as
retrieved from Gecko), and uses the same defaults as Gecko. A few
properties are not supported yet, and incremental GC is still always
disabled regardless of the preference setting.
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Fix sandboxing on OS X
The main issue was resources_dir_path. Every time it was called it would start from the executable's path and walk up the hierarchy to find a directory named "resources". The sandbox was granted permission to read from the found resources dir, but after the sandbox had been activated resources_dir_path would again start from the executable's path and try to find the resources dir. It would then fail with "Operation not permitted" when trying to canonicalize the path because it didn't have permissions to read metadata under ./target.
To fix this the resources dir path is now cached between resources_dir_path calls.
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Add tests and clean up `FlexFlow::(block|inline)_mode_assign_inline_sizes`
Clean up `block_mode_assign_inline_sizes` and `inline_mode_assign_inline_sizes` and add extra css tests.
r? @SimonSapin
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Add API base url method to global objects
This adds an `api_base_url` function to global objects, which fixes `open-url-base.htm` under XMLHttpRequest.
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