Summary:
Fetching any target is now asynchronous. But RDM setup/destroy codepath is very fragile
and introduce many low level exception when trying to restore the original browser element
if any timing changes.
So this patch prevents trying to fetch the target object if a toolbox isn't already opened.
The target object is being used only for Telemetry purpose for now.
Depends On D4538
Reviewers: yulia!
Tags: #secure-revision
Bug #: 1485676
Differential Revision: https://phabricator.services.mozilla.com/D4540
MozReview-Commit-ID: 2QDUNqentMP
Summary:
We are not passing a tab here. It only works by chance!
Depends On D4535
Reviewers: yulia!
Tags: #secure-revision
Bug #: 1485676
Differential Revision: https://phabricator.services.mozilla.com/D4536
MozReview-Commit-ID: K0ztxPM2N6A
This should be more generic than hardcoding the tags, and be enough for our
chrome to avoid regressions as they migrate more stuff to CE, avoiding calling
into the GetComputedStyle machinery..
Differential Revision: https://phabricator.services.mozilla.com/D6537
--HG--
extra : moz-landing-system : lando
According to the new svg 2 spec update (#543), we flip the flag half way for
path interpolation.
Differential Revision: https://phabricator.services.mozilla.com/D6192
--HG--
extra : moz-landing-system : lando
"layers.async-pan-zoom.enabled" has been enabled for all platforms for a
long time. I reword the comment to avoid confusion.
Differential Revision: https://phabricator.services.mozilla.com/D5471
--HG--
extra : moz-landing-system : lando
Not quite sure why this dependency ever existed. These builds never use clang-tidy,
so this dependency was probably never needed in the first place.
Differential Revision: https://phabricator.services.mozilla.com/D6493
--HG--
extra : moz-landing-system : lando
A C++ object that is exposed to JS can have its reflector used as a
key in a weak map. Because a weak map does not keep its keys alive,
this means that the reflector can be discarded if it has no other
references aside from the C++ object, which will in turn remove its
weak map entry. If the C++ object can be accessed again later from JS,
it will get a new reflector which will have no weak map entry. This is
bad because it means some internal implementation detail has resulted
in data loss that is visible to JS. (Side note: this is also an issue
for cross compartment wrappers, which is handled by another
mechanism.)
To fix this, we can preserve the wrapper of any DOM reflector used as
a weak map key. This ensures that the reflector and its C++ object
have the same lifetime. If a WebIDL object is not wrapper cached, that
means that it cannot be accessed via C++, so we don't need to preserve
the wrapper. This is currently implemented for nsISupports classes,
but not other classes. For non-nsISupports classes, it would throw an
error rather than silently fail.
My patch adds support for non-nsISupports cycle collected objects. It
turns out that the existing addProperty hook just does wrapper
preservation, so we just call it for cycle collected classes. This
does mean that if addProperty changes in the future to do something
else, this code will need to be changed.
I verified that this test fails if TryPreserveWrapper is changed to do
nothing besides return true in the non-nsISuports case.
Depends on D6197
Differential Revision: https://phabricator.services.mozilla.com/D6198
--HG--
extra : moz-landing-system : lando
The patch in the next part will need a handle to the object in
TryPreserveWrapper.
Differential Revision: https://phabricator.services.mozilla.com/D6197
--HG--
extra : moz-landing-system : lando
This patch changes the way we search symbols when fixing up a stack.
Previously we would find the closest PUBLIC or FUNC entry lower than a given
address. Because of how symbol files were processed we preferred PUBLIC
entries to FUNC ones. Now we look first for the function that contains the
address (obtained from the FUNC entries) then if none is available we look for
the closest, lower PUBLIC entry.
Differential Revision: https://phabricator.services.mozilla.com/D5033
--HG--
extra : moz-landing-system : lando
