write cookie_jar, hsts_list, auth_cache to file if profile_dir option is present
For Persistent sessions student project
"if the profile directory command-line option is present when the ResourceThread is instructed to exit, serialize the data contained in cookie_storage, hsts_list, and the new HTTP authorization cache, and write the serialized data in separate files inside the profile directory."
and
"perform the same serialization on shutdown for local_data in storage_thread.rs, which represents the LocalStorage API."
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Implement scroll, scrollLeft, scrollTop and friends, addressing issue #9650
This is a work in progress to solve https://github.com/servo/servo/issues/9650. Thanks a lot for helping the review.
- [x] scroll
- [x] scrollTo
- [x] scrollBy
- [x] scrollTop (setter and getter)
- [x] scrollLeft (setter and getter)
The setters will be implemented in another PR after this is merged.
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Remove extra definition of WHITESPACE under components/util/str.rs
issue: #10709
found another ``` const WHITESPACE: &'static [char] = &['\t', '\n', '\r', ' ']; ``` in ```components/style/viewports.rs ``` maybe this could be replaced too with the ```util::str::HTML_SPACE_CHARACTERS```
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Lower the logging level of a really chatty fn
Reduces the amount of spew when running with settings like `RUST_LOG=script=debug`.
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Dedicated panic channel
Added a dedicated panic channel, and removed the panic messages for the script and layout threads. This is needed so that other threads can report panics, which is part of #10334.
Note that this PR includes the commit from #10572, so should land after it lands.
r? @Manishearth
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