Currently, all handling of pending dialogs occurs in PageHost. In order
to re-use this functionality to run WebDriver in a headless move, move
it to Page.
(And BrowsingContextGroup had to come along for the ride as well.)
This solves a number of nasty reference cycles between browsing
contexts, history items, and their documents.
This patch implements the "create a new browsing context" function from
the HTML spec and replaces our existing logic with it.
The big difference is that browsing contexts now initially navigate to
"about:blank" instead of starting out in a strange "empty" state.
This makes it possible for websites to create a new iframe and start
scripting inside it right away, without having to load an URL into it.
This namespace will be used for all interfaces defined in the URL
specification, like URL and URLSearchParams.
This has the unfortunate side-effect of requiring us to use the fully
qualified AK::URL name whenever we want to refer to the AK class, so
this commit also fixes all such references.
Our "frame" concept very closely matches what the web specs call a
"browsing context", so let's rename it to that. :^)
The "main frame" becomes the "top-level browsing context",
and "sub-frames" are now "nested browsing contexts".
SPDX License Identifiers are a more compact / standardized
way of representing file license information.
See: https://spdx.dev/resources/use/#identifiers
This was done with the `ambr` search and replace tool.
ambr --no-parent-ignore --key-from-file --rep-from-file key.txt rep.txt *
