We keep the XBL binding around for <content>, <constructor>, and <destructor>. This can
eventually be migrated to a Custom Element once we have platform support, but in the meantime
this is a way to get the many thousands of LOC into a JS class.
MozReview-Commit-ID: 1dCQp527yF9
There's a lot of overhead to loading scripts from <script> tags in
browser.xul. They're loaded asynchronously, and can't begin loading until
after we begin loading browser.xul. They're loaded using off-main-thread
compilation, which means we need to create and merge a new JS zone for each
script we load that way. They don't benefit from the startup cache at all.
If we load those scripts using the subscript loader, they're loaded from the
preloader cache, and begin loading as early as possible. And they're all
loaded into a single off-thread zone, which means there are less zones to
create and merge. From a quick test, this seems to save about 20-40ms on
Windows ts_paint talos runs.
The main downside is that subscript loader scripts don't benefit from lazy
parsing, so we might wind up increasing memory usage if most of the functions
in those scripts aren't used very often. But we should hopefully be able to
fix that by migrating more browser JS to lazy loading.
MozReview-Commit-ID: Lozb0d0QweC
This removes the obsolete toolkit directory. A few references to dialogOverlay
have been updated to just used <dialog> directly. The InlineSpellCheckerUI var
has also been moved directly to browser.js and defined as lazy getter.
MozReview-Commit-ID: JZfi0W2wqCL
TabsInTitlebar has various ifdefs to avoid shipping code that's not gonna be used on Linux. Instead of complicating the logic with AppConstants checks and shipping this extra code unecessarily on Linux, i've separated the code to a different file that can be replaced by a stub implementation.
make MOZ_PLACES (if enabled) only build the places based history UI, use MOZ_PLACES_BOOKMARKS to turn off the places based bookmarks UI.
also addresses bugs:
bug #330923: "View -> Sidebar menu" is empty if you build with places
bug #355738: implement history sidebar on top of places backend
bug #356175: hook up the history menu to the places backend
bug #356453: add back "Clear Private Data" menu item
bug #356630: add back "History | Show in Sidebar" menu item
bug #356631: remove "search in history" and "view all history" menu items
bug #357301: add back history and bookmark sidebar toolbar button items, remove places toolbar button
bug #358831: history sidebar, right mouse button click should not expand / collapse item
r=dietrich, r=gavin
