We currently store the source contents in both the SourceActor and the
ThreadActor’s SourceManager, which is redundant. We also currently send
the source contents in thread `sources` responses and watcher
`resources-available-array` messages, but in both cases this is
unnecessary (and ignored by the client).
This patch merges SourceData into SourceActor, making the latter the
single source of truth for source-related state. We also create a
SourceForm type, which represents the subset of source-related state
that gets sent in thread `sources` responses (and for now, watcher
`resources-available-array` messages).
Finally we rename `source_urls` → `source_actor_names` and `new_source`
→ `new_registered` for clarity.
Testing: no changes to client-facing behaviour, and this is covered by
tests
Signed-off-by: Delan Azabani <dazabani@igalia.com>
Co-authored-by: atbrakhi <atbrakhi@igalia.com>
This patch adds support for showing source_content in `Debugger >
Source` panel. This works by handling the clients `source` messages in
the source actor. These source actors are already advertised as resource
via the watcher, populating the source list. We also update the
`sources` handler in thread actor for future work in thread debugging.
Note: while this PR also adds support for showing worker script
source_content, worker has been broken (See
https://github.com/servo/servo/issues/37012). I was able to confirm the
`content_type` and `source_content` for worker script in logs.

Fixes: part of https://github.com/servo/servo/issues/36027
---------
Signed-off-by: atbrakhi <atbrakhi@igalia.com>
Currently Source related code exists in watcher.rs and thread.rs. This
change moves source-related code to a dedicated source.rs file. This is
in preparation for adding support for showing source code in the
Debugger > Source panel.
- [x] Testing: These changes should not affect current functionality as
it only moves the existing code
- [x] Fixes: part of https://github.com/servo/servo/issues/36027
---------
Signed-off-by: atbrakhi <atbrakhi@igalia.com>