`profiler_thread_is_being_profiled` is used a lot for markers, so it makes sense to have a specialized version, which is a bit shorter, and lives in ProfilerMarkers.h.
Differential Revision: https://phabricator.services.mozilla.com/D130009
Brief recap:
Before we have blocking autoplay, we had a feature which will delay media from start if the tab hasn't been visited by users, in order to prevent an unvisited background tab suddenly play sounds, which is annoying and might be unexpected to users.
In this patch:
The attribute we use to check whether we need to delay media is on the outer window, which is not Fission compatible if the top level window and its child windows are on the different process.
If the top level window has been visited, then all its child window should follow the same result. Therefore, we need to move the attribute to the browsing context in order to sync it across different windows.
Differential Revision: https://phabricator.services.mozilla.com/D128126
Currently, soft reload uses the `VALIDATE_ALWAYS` flag to not only
force revalidate the top level document, but also subresources.
This causes content to be refetched from the web even if there
are caches that are still valid and can be used.
Chrome already has such behaviour to not revalidate all resources.
Differential Revision: https://phabricator.services.mozilla.com/D122270
Currently, we are using the regular principal and inherited regular
principal to create clientSource in nsDocShell. This patch makes the
nsDocshell to use the partitioned principal if needed.
Differential Revision: https://phabricator.services.mozilla.com/D127629
Currently, we are using the regular principal and inherited regular
principal to create clientSource in nsDocShell. This patch makes the
nsDocshell to use the partitioned principal if needed.
Differential Revision: https://phabricator.services.mozilla.com/D127629
Currently, we are using the regular principal and inherited regular
principal to create clientSource in nsDocShell. This patch makes the
nsDocshell to use the partitioned principal if needed.
Differential Revision: https://phabricator.services.mozilla.com/D127629
Currently, we are using the regular principal and inherited regular
principal to create clientSource in nsDocShell. This patch makes the
nsDocshell to use the partitioned principal if needed.
Differential Revision: https://phabricator.services.mozilla.com/D127629
Currently, we are using the regular principal and inherited regular
principal to create clientSource in nsDocShell. This patch makes the
nsDocshell to use the partitioned principal if needed.
Differential Revision: https://phabricator.services.mozilla.com/D127629
This is a pretty cheap way of fixing this bug by saying nsDocShell::loadURI calls
done with a system principal will add user interaction to the current page. This takes
advantage of the fact that all UI code for loading URIs goes through this code path.
Note that during debugging I've found other cases where SH entries would be added with
a system principal, most notably when navigating to URL hashes/fragments (example.com#hash).
I'm not sure why this is happening but it doesn't go through nsDocShell::loadURI.
Differential Revision: https://phabricator.services.mozilla.com/D127558
When we navigate in history to the same entry that we're current at then we
actually do a reload. The problem is in the way we detect whether to do a reload
in the parent process.
If a page does a back and a forward one after the other in a script, then the
parent will calculate the index for the back and tell the child to load the
entry at that index. While the child is processing the load of that entry, the
BC in the parent process still has the same entry as its active entry (until the
child commits the load of the entry over IPC). The parent then processes the
forward, calculates the index for the forward and finds the entry at that index.
This is the same entry that we were at before doing anything, and so the same
entry as the active entry in the BC in the parent process. We used to compare
the entry that we're going to load with the active entry in the BC to determine
whether we're doing a reload, and so in this situation we would assume the
forward navigation was actually doing a reload. The child would reload the page,
and we'd run the script again and we'd end up in a reload loop.
Comparing the offset with 0 to determine whether we're doing a reload fixes this
issue.
Differential Revision: https://phabricator.services.mozilla.com/D126585
When we navigate in history to the same entry that we're current at then we
actually do a reload. The problem is in the way we detect whether to do a reload
in the parent process.
If a page does a back and a forward one after the other in a script, then the
parent will calculate the index for the back and tell the child to load the
entry at that index. While the child is processing the load of that entry, the
BC in the parent process still has the same entry as its active entry (until the
child commits the load of the entry over IPC). The parent then processes the
forward, calculates the index for the forward and finds the entry at that index.
This is the same entry that we were at before doing anything, and so the same
entry as the active entry in the BC in the parent process. We used to compare
the entry that we're going to load with the active entry in the BC to determine
whether we're doing a reload, and so in this situation we would assume the
forward navigation was actually doing a reload. The child would reload the page,
and we'd run the script again and we'd end up in a reload loop.
Comparing the offset with 0 to determine whether we're doing a reload fixes this
issue.
Differential Revision: https://phabricator.services.mozilla.com/D126585
Using requestedIndex on the child side is hard, because there are race conditions when a session history load is triggered
and at the same time a non-session history load commits a new active entry.
Differential Revision: https://phabricator.services.mozilla.com/D126619
When we navigate in history to the same entry that we're current at then we
actually do a reload. The problem is in the way we detect whether to do a reload
in the parent process.
If a page does a back and a forward one after the other in a script, then the
parent will calculate the index for the back and tell the child to load the
entry at that index. While the child is processing the load of that entry, the
BC in the parent process still has the same entry as its active entry (until the
child commits the load of the entry over IPC). The parent then processes the
forward, calculates the index for the forward and finds the entry at that index.
This is the same entry that we were at before doing anything, and so the same
entry as the active entry in the BC in the parent process. We used to compare
the entry that we're going to load with the active entry in the BC to determine
whether we're doing a reload, and so in this situation we would assume the
forward navigation was actually doing a reload. The child would reload the page,
and we'd run the script again and we'd end up in a reload loop.
Comparing the offset with 0 to determine whether we're doing a reload fixes this
issue.
Differential Revision: https://phabricator.services.mozilla.com/D126585
This version doesn't change SetContainer handling, since it seems to be tricky for the top level page.
So only activity change notification is fired and IsActive() is updated.
The comment about IsActive() was wrong even with the old bfcache implementation.
(I did check that it returned false when the page was in bfcache and many of the activity observers rely on that)
The changes to HTMLMediaElement are needed to ensure page can enter bfcache..
Differential Revision: https://phabricator.services.mozilla.com/D124684
SetContainer handling is similar to what DocumentViewer does for the old bfcache implementation.
(The old implementation hides it quite well).
The changes to HTMLMediaElement are needed to ensure page can enter bfcache.
Removed erroneous MOZ_ASSERT in nsPresContext, it is ok to trigger that code path in the new implementation.
And the Run() method of the relevant nsIRunnable already deals with that case.
Differential Revision: https://phabricator.services.mozilla.com/D124684
Getting all the requests from the loadgroup every time a request
is added or removed was causing performance issues. It turns out
that it wasn't really needed for determining if a page should be
blocked from the BFCache, since we just need to know if there
are any requests in the loadgroup, and if so, if all it contains
is just one request with an id. We can keep a count of relevant
requests in the loadgroup. When the count changes to 1, on adding
we can inspect the request that's being added, and on removal we
can inspect the requests in the loadgroup (which should be now be
cheap enough, since there's only 1 relevant request in the list).
Differential Revision: https://phabricator.services.mozilla.com/D125251
This makes the method's name more consistent with IsContentSubframe, and is
probably more clear than IsFrame (as a <browser> could be considered a frame).
Depends on D124211
Differential Revision: https://phabricator.services.mozilla.com/D124212
This method actually tracks whether the context is current, so it has been
renamed, and the behaviour has been inverted.
Depends on D124210
Differential Revision: https://phabricator.services.mozilla.com/D124211
These codepaths will never be taken with SHIP enabled, and this patch adds a
couple assertions to keep track of that information for when we rip out SHIP.
Differential Revision: https://phabricator.services.mozilla.com/D124210
This will, for example, make it possible to behave differently for a normal navigation,
a reload navigation, a history navigation, and a pushstate navigation.
Differential Revision: https://phabricator.services.mozilla.com/D122532
This makes sure to clear and set the value more consistently when replacing
documents within a WindowGlobal, and makes sure to include the relevant flag in
the initializer.
In addition, the place where the flag is set is moved ahead to happen before
the call to `Embed` so that the information is ready before the window is
created.
Differential Revision: https://phabricator.services.mozilla.com/D119815
This moves the logic of whether a pres shell should be active to a
single place to make it sane to reason about, and fixes the
subdocument propagation when a BrowserChild becomes visible.
Differential Revision: https://phabricator.services.mozilla.com/D118703
Move the counting of private browsing contexts to the parent
process. Also change to only consider non-chrome browsing contexts
when counting private contexts. The latter is possible due to bug
1528115, because we no longer need to support hidden private windows.
With counting in the parent process we can make sure that when we're
changing remoteness on a private browsing context the private browsing
context count never drops to zero. This fixes an issue with Fission,
where we remoteness changes could transiently have a zero private
browsing context count, that would be mistaken for the last private
browsing context going away.
Changing to only count non-chrome browsing contexts makes us only fire
'last-pb-context-exited' once, and since we count them in the parent
there is no missing information about contexts that makes us wait for
a content process about telling us about insertion or removal of
browsing contexts.
Differential Revision: https://phabricator.services.mozilla.com/D118182
