We only run process scripts once per process, so there's no need to compile
them for the compilation scope, or to keep a separate cloned copy alive for
the length of the session.
This patch changes the caching behavior of message managers to compile
single-use scripts directly for the target global, and avoid caching them for
the rest of the session. It also changes the preloader to drop references to
these scripts after they've been executed and/or encoded, as appropriate.
MozReview-Commit-ID: EfKo2aYbBxl
--HG--
extra : rebase_source : aebc5812bef4413d497ac4fdb59aced00a5a4c8e
extra : absorb_source : cf5795eb0bff47d08b1ab45f002afb3f05109c93
extra : histedit_source : e92619d2a818095241c52d8f1961ccad38300d32
This class implements a shared memory key-value store that fits into a single
memory mapped segment. All of the runtime data for its instances are stored in
the shared memory region, which means that memory overhead for each instance
in each process is only a few bytes.
Importantly, the key and value strings returned by this class are also
pointers into the shared memory region, which means that once an instance is
created, its memory cannot be unmapped until process shutdown.
For the uses I intend to put it to, this is a reasonable constraint. If we
need to use it for shorter-lived maps in the future, we can add an option to
return non-literal dependent strings that will be copied if they need to be
kept alive long term.
MozReview-Commit-ID: 5BwAaDsb7HS
--HG--
extra : rebase_source : b472fe628018f88a2c4d6b3de4b7143aeca55e14
extra : absorb_source : 5cdeb568cfd2b4a5a767191402e699e61e653b3b
This class allows us to map a read-write shared memory region, and then safely
remap it read-only, so that it can be shared with sandboxed content processes.
MozReview-Commit-ID: 2PJMQgOwA4V
--HG--
extra : rebase_source : c556cabfa7d379a91dc9ef7171ac0a7d7d8fb32e
extra : absorb_source : e78e304ed95891c694050f79a0bb5d40d11ee884
This is a quick-and-dirty port. It might be nice to replace
SpecialPowersObserver with the webextensions content script injection
system at some point, but that isn't practical right now (since WE experiments
cannot implement new APIs visible to content scripts).
MozReview-Commit-ID: GinCu3VcbWK
--HG--
rename : testing/specialpowers/bootstrap.js => testing/specialpowers/api.js
extra : rebase_source : 0faf7d21c8868c957ddc7fede0d56809f27dc161
extra : intermediate-source : ffb9ce93b92dd6396bfe038d3f6a8bcf929ec277
extra : source : cca596eadd0437dc75b75c119b6c7a405805f703
This is a quick-and-dirty port. It might be nice to replace
SpecialPowersObserver with the webextensions content script injection
system at some point, but that isn't practical right now (since WE experiments
cannot implement new APIs visible to content scripts).
MozReview-Commit-ID: GinCu3VcbWK
--HG--
rename : testing/specialpowers/bootstrap.js => testing/specialpowers/api.js
extra : rebase_source : 8be131e80d95a6bf6e86c994fdfa40c14ba610eb
extra : source : cca596eadd0437dc75b75c119b6c7a405805f703
Summary:
This patch adds the infrastructure to move Activity Stream (about:newtab, about:home,
and about:welcome) into its own special content process - the privileged content
process. This feature of running Activity Stream in the privileged content process
is disabled by default. (See "browser.tabs.remote.separatePrivilegedContentProcess"
preference.) We can deal with other about: pages in a follow-up.
Reviewers: mconley
Tags: #secure-revision
Bug #: 1469072
Differential Revision: https://phabricator.services.mozilla.com/D1731
MozReview-Commit-ID: 5gIrP4LxcIt
--HG--
extra : rebase_source : d43c411ae60aad3d5a3a496e6729de0b547b4acd
In file included from objdir/js/xpconnect/src/Unified_cpp_js_xpconnect_src1.cpp:110:
js/xpconnect/src/nsXPConnect.cpp:76:37: error: use of undeclared identifier
'profiler_register_thread'
JS::SetProfilingThreadCallbacks(profiler_register_thread, profiler_unregister_thread);
^
js/xpconnect/src/nsXPConnect.cpp:76:63: error: use of undeclared identifier
'profiler_unregister_thread'
JS::SetProfilingThreadCallbacks(profiler_register_thread, profiler_unregister_thread);
^
MozReview-Commit-ID: HrBGEkByEum
--HG--
extra : rebase_source : b588e8f04d44d07c348120efc6008e6c24b8949e
This does mean that if the node is adopted back into the original document the
expandos would end up on the reflector at that point. I think that's OK;
people shouldn't be adopting things in that direction. Futhermore, if they
adopt, then set expandos, then adopt back they already get this behaviorl
So if we decide we don't want that, we should probably just avoid copying own
props when reparenting into a global whose principals don't subsume the old
global.
Originally, the ScriptPreloader stopped recording and wrote its cache when the
browser-delayed-startup-finished notification fired for the first window, but there
are other scripts (both in the content and WebExtension processes) that might run
soon after that we also want to cache.
This patch still makes the parent process stop recording scripts after
browser-delayed-startup-finished, but only prepares and writes the cache
once browser-idle-startup-tasks-finished fires, when it is much more likely
that the content and WebExtension caches are ready to go.
MozReview-Commit-ID: KiBEVvuqQkA
--HG--
extra : rebase_source : 6f0fde65cdafdecf72242a06416fef10304637b8
