To avoid being able to introduce dependencies between tests this commit
makes sure that we close the document between tests so that we can't
accidentally rely on state set by a previous test.
Right now, editable annotations are using their own canvas when they're drawn, but
it induces several issues:
- if the annotation has to be composed with the page then the canvas must be correctly
composed with its parent. That means we should move the canvas under canvasWrapper
and we should extract composing info from the drawing instructions...
Currently it's the case with highlight annotations.
- we use some extra memory for those canvas even if the user will never edit them, which
the case for example when opening a pdf in Fenix.
So with this patch, all the editable annotations are drawn on the canvas. When the
user switches to editing mode, then the pages with some editable annotations are redrawn but
without them: they'll be replaced by their counterpart in the annotation editor layer.
This commit replaces `waitForFunction` calls that use
`document.activeElement` to wait for an element to get focus by simpler
`waitForSelector` expressions that use the `:focus` selector. Note that
we already use this in other tests, so this improves consistency too.
This commit replaces all `waitForTimeout` occurrences with the
appropriate `waitForFunction` calls. Note that in some places they were
already present, so in those cases we could simply remove the
`waitForTimeout` call altogether.
The `waitForTimeout` function should not be used anymore and only exists
for old usages that have to be rewritten, but there was nothing in place
to signal this. This commit therefore implements a linting rule, specific
to the integration tests, to make it clear that this function should no
longer be used. We exclude the old usages from it because we are already
tracking those in #17656 (so this patch is mostly to not make the scope
of that issue bigger).
