For desktop this should basically have no impact (maybe impacts tab
warming, but if we wanted we could set the priority hint from the tab
switcher the same way we set renderLayers), but Fenix always has
renderLayers as true, effectively, so we were never de-prioritizing the
background tab processes.
Differential Revision: https://phabricator.services.mozilla.com/D145351
For desktop this should basically have no impact (maybe impacts tab
warming, but if we wanted we could set the priority hint from the tab
switcher the same way we set renderLayers), but Fenix always has
renderLayers as true, effectively, so we were never de-prioritizing the
background tab processes.
Differential Revision: https://phabricator.services.mozilla.com/D145351
This is currently effectively just a helper around the existing
properties. Theoretically we could streamline things here in the future
by managing primary content entirely based on BrowsingContext rather
than docshell, but there's enough complexity there right now with other
properties like updating properties on content shells as they're
attached, that it's probably not worth trying to unify right now,
especially considering the low number of consumers.
Differential Revision: https://phabricator.services.mozilla.com/D146495
For desktop this should basically have no impact (maybe impacts tab
warming, but if we wanted we could set the priority hint from the tab
switcher the same way we set renderLayers), but Fenix always has
renderLayers as true, effectively, so we were never de-prioritizing the
background tab processes.
Differential Revision: https://phabricator.services.mozilla.com/D145351
Prior behavior for active tabs in an inactive app would have the process priority oom score of 15. Now it's set to a higher priority oom score of 11. This will increase priority for recently used tabs on apps and prevent Android from unloading them.
Differential Revision: https://phabricator.services.mozilla.com/D142386
Prior behavior for active tabs in an inactive app would have the process priority oom score of 15. Now it's set to a higher priority oom score of 11. This will increase priority for recently used tabs on apps and prevent Android from unloading them.
Differential Revision: https://phabricator.services.mozilla.com/D142386
Prior behavior for active tabs in an inactive app would have the process priority oom score of 15. Now it's set to a higher priority oom score of 11. This will increase priority for recently used tabs on apps and prevent Android from unloading them.
Differential Revision: https://phabricator.services.mozilla.com/D142386
I was unable to determine why the BrowserParent is already destroyed,
but the change of checking `CanSend()` in `nsFrameLoaderDestroyRunnable`
seems to have fixed the issue in my test run.
My original theory was that somehow the BrowserParent is being destroyed
before it is associated with the nsFrameLoader, but the assertions to
that effect which I added didn't seem to fire. I'm guessing this may
have something instead to do with BFCache, but I'm not completely
certain.
Differential Revision: https://phabricator.services.mozilla.com/D130103
This accomplishes 2 things:
1. Allows us to directly fetch the layersId of the process that is
autoscrolling, which avoids having to fetch it in AutoScrollChild and pass it
around. This fixes autoscrolling out-of-process frames with Fission enabled.
2. Makes it easier to handle autoscrolling of in-process documents, since that
can't happen through PBrowser.
Differential Revision: https://phabricator.services.mozilla.com/D120766
This accomplishes 2 things:
1. Allows us to directly fetch the layersId of the process that is
autoscrolling, which avoids having to fetch it in AutoScrollChild and pass it
around. This fixes autoscrolling out-of-process frames with Fission enabled.
2. Makes it easier to handle autoscrolling of in-process documents, since that
can't happen through PBrowser.
Differential Revision: https://phabricator.services.mozilla.com/D120766
With Fission, there can be multiple BrowserParents in a single tab, so
this patch moves the tracking of active tabs onto the top BrowsingContext
in a tab. If the priority of a top BC is changed, then the activity
of all of the BPs of the BCs in the tree are all adjusted. The flag
that tracks this state gets carried forward to the new BC in the case
of a cross-group navigation by the changes in ReplacedBy().
The other change here covers the case where we do a process-switching
navigation on an iframe. If we create a new BrowserParent with an active
top BC, then the BP gets marked as active in the priority manager. Doing
this tracking on the BP instead of the BC (both here in and in the part
that landed previously in BrowserParent::Deactivated()) means that we
don't need to track down every place that a BC switches processes.
I left the tracking of activity in ParticularProcessPriorityManager
centered around BrowserParents, instead of changing it to BCs, to
minimize the changes required. There are some tricky interactions there
with wakelocks that I didn't want to have to figure out.
browser_ProcessPriorityManager.js was set up to track a mapping of
browsers to priorities, but for the purposes of testing Fission support
I changed it to track a mapping of child IDs to priorities.
In the test, I also removed an assignment (this.window = null) that
didn't seem to be doing anything.
Differential Revision: https://phabricator.services.mozilla.com/D112213
With Fission, there can be multiple BrowserParents in a single tab, so
this patch moves the tracking of active tabs onto the top BrowsingContext
in a tab. If the priority of a top BC is changed, then the activity
of all of the BPs of the BCs in the tree are all adjusted. The flag
that tracks this state gets carried forward to the new BC in the case
of a cross-group navigation by the changes in ReplacedBy().
The other change here covers the case where we do a process-switching
navigation on an iframe. If we create a new BrowserParent with an active
top BC, then the BP gets marked as active in the priority manager. Doing
this tracking on the BP instead of the BC (both here in and in the part
that landed previously in BrowserParent::Deactivated()) means that we
don't need to track down every place that a BC switches processes.
I left the tracking of activity in ParticularProcessPriorityManager
centered around BrowserParents, instead of changing it to BCs, to
minimize the changes required. There are some tricky interactions there
with wakelocks that I didn't want to have to figure out.
browser_ProcessPriorityManager.js was set up to track a mapping of
browsers to priorities, but for the purposes of testing Fission support
I changed it to track a mapping of child IDs to priorities.
In the test, I also removed an assignment (this.window = null) that
didn't seem to be doing anything.
Differential Revision: https://phabricator.services.mozilla.com/D112213
And have it mirror in the parent process more automatically.
The docShellIsActive setter in the browser-custom-element side needs to
be there rather than in the usual DidSet() calls because the
AsyncTabSwitcher code relies on getting an exact amount of notifications
as response to that specific setter. Not pretty, but...
BrowserChild no longer sets IsActive() on the docshell itself for OOP
iframes. This fixes bug 1679521. PresShell activeness is used to
throttle rAF as well, which handles OOP iframes nicely as well.
Differential Revision: https://phabricator.services.mozilla.com/D96072
Make it a synced field on the top browsing context. This handling the
propagation right and is much simpler.
This should fix cases where we don't look at the top level docshell to
figure out if we should suspend media.
Differential Revision: https://phabricator.services.mozilla.com/D94878
This patch enables sandboxed srcdoc loads to take place via DocumentChannel,
and adds mechanisms for enabling unsandboxed ones.
Both unsandboxed srcdoc, and in subsequent patches, about:blank, loads require
that the triggering principal and the principal to inherit point to the same
instance if the load takes place in the same process as where we are inheriting
those principals from. We save those principals on a target browsing context before
we load the URI, and later, when we are deserializing LoadInfoArgs into
LoadInfo in the content process, we retrieve the saved principals if the
current load identifier of the target BC matches the load identifier saved
along with the principals.
We also need to make sure that during a process switch for about:srcdoc load,
we don't use the original URI for about:srcdoc to determine the remote type and
instead we use channel's result principal.
Differential Revision: https://phabricator.services.mozilla.com/D85079
This patch enables sandboxed srcdoc loads to take place via DocumentChannel,
and adds mechanisms for enabling unsandboxed ones.
Both unsandboxed srcdoc, and in subsequent patches, about:blank, loads require
that the triggering principal and the principal to inherit point to the same
instance if the load takes place in the same process as where we are inheriting
those principals from. We save those principals on a target browsing context before
we load the URI, and later, when we are deserializing LoadInfoArgs into
LoadInfo in the content process, we retrieve the saved principals if the
current load identifier of the target BC matches the load identifier saved
along with the principals.
We also need to make sure that during a process switch for about:srcdoc load,
we don't use the original URI for about:srcdoc to determine the remote type and
instead we use channel's result principal.
Differential Revision: https://phabricator.services.mozilla.com/D85079
This should fix the issue for preallocated processes that still don't
host any document, and also send a few less IPC messages.
Differential Revision: https://phabricator.services.mozilla.com/D76537
This patch makes the triggering princpal to be propagated to the
BrowserChild when calling LoadURL in nsFrameLoader. And use it as the
triggering principal for loading instead of the system principal.
Differential Revision: https://phabricator.services.mozilla.com/D75965
Implemecurnt a flag `suspendMediaWhenInactive` on the docShell that indicates media in that shell should be suspended when the shell is inactive. Currently, only GeckoView is using this flag.
---
The reason of implementing this flag is because in bug1577890 we remove the old way to suspend/resume the media, and I thought setting docshell to inactive is enough to suspend the media because we already have a mechanism which would suspend/resume media when document becomes inactive/active [1].
However, the active state of document is actually different from what I thought it was. Setting docshell to inactive won't change the document's active state, because that indicates if the document is the current active document for the docshell [2] (docshell can have multiple documents), instead of indicating if the docshell is active or not.
Therefore, we have to add another flag to indicate if the docshell wants to suspend its media when it's inactive, in order to use current mechanism to suspend/resume media.
[1] https://searchfox.org/mozilla-central/rev/4d2a9d5dc8f0e65807ee66e2b04c64596c643b7a/dom/html/HTMLMediaElement.cpp#6453
[2] https://searchfox.org/mozilla-central/rev/4d2a9d5dc8f0e65807ee66e2b04c64596c643b7a/dom/base/Document.h#2627-2633
Differential Revision: https://phabricator.services.mozilla.com/D69669
Implemecurnt a flag `suspendMediaWhenInactive` on the docShell that indicates media in that shell should be suspended when the shell is inactive. Currently, only GeckoView is using this flag.
---
The reason of implementing this flag is because in bug1577890 we remove the old way to suspend/resume the media, and I thought setting docshell to inactive is enough to suspend the media because we already have a mechanism which would suspend/resume media when document becomes inactive/active [1].
However, the active state of document is actually different from what I thought it was. Setting docshell to inactive won't change the document's active state, because that indicates if the document is the current active document for the docshell [2] (docshell can have multiple documents), instead of indicating if the docshell is active or not.
Therefore, we have to add another flag to indicate if the docshell wants to suspend its media when it's inactive, in order to use current mechanism to suspend/resume media.
[1] https://searchfox.org/mozilla-central/rev/4d2a9d5dc8f0e65807ee66e2b04c64596c643b7a/dom/html/HTMLMediaElement.cpp#6453
[2] https://searchfox.org/mozilla-central/rev/4d2a9d5dc8f0e65807ee66e2b04c64596c643b7a/dom/base/Document.h#2627-2633
Differential Revision: https://phabricator.services.mozilla.com/D69669
This covers most cycle collected objects which support weak references, but
not the ones which inherit from a cycle collected class and don't do any cycle
collection on their own.
Differential Revision: https://phabricator.services.mozilla.com/D63962
