Bug 1239708 - Improve the autofill decisions algorithms. try: -b do -p all -u all -t none MozReview-Commit-ID: 9KbnkcVQNYB

Bug 1429129 - Add enterprise policy to remove "Set As Desktop Background" context menu option MozReview-Commit-ID: EdVKcujYUh4

try: -b do -p all -u all -t none Bug 1239708 - Improve the autofill decisions algorithms. MozReview-Commit-ID: 7oY6Y9eOoI2

Bug 1429129 - Add enterprise policy to remove "Set As Desktop Background" context menu option MozReview-Commit-ID: EdVKcujYUh4

Bug 1432986 - Sync shield-recipe-client v83 from Github (commit 43f0ce2) r?Gijs MozReview-Commit-ID: 9TGdnKZ5zaf

Bug 1433807 - Removed unused `mirror.locations` index. r?tcsc Since the synced bookmark mirror is currently disabled by default, we can do this without a migration. MozReview-Commit-ID: LWOwWCFHpuK

Bug 1433309 - Annotate createMediaKeys promise reject with whether failure occurred due to pending shutdown. r=gerald Around every Firefox update, Netflix see a spike in MediaKeySystemAccess.createMediaKeys() promise rejects. I am wondering whether this is caused by the browser restarting to apply a Firefox update while Netflix's player is loading. So add more detail to the promise reject as to the state of the system, to try to validate that theory. MozReview-Commit-ID: 4IDPsFwKCtq

Comment out assert which is triggering on new tab speed dial.

Bug 1421419 - Fix synced tabs sidebar searchbox on macOS. r?dao MozReview-Commit-ID: K9ANLPjxqA5

Bug 1432659 - Expose Pocket API to get your pocket stream MozReview-Commit-ID: IkW7Iccdfr0

Bug 1434001: Handle lambdas in CanRunScriptChecker. r?mystor Such a shame that the functionDecl() matcher doesn't handle them. I didn't find a cleaner way to handle them, but I'm a 100% noob with AST matchers, so there may be a more elegant way to do this. MozReview-Commit-ID: 3HJQdFpN4hy

Bug 1433671: Add MOZ_CAN_RUN_SCRIPT annotations to AccessibleCaret. r=bz MozReview-Commit-ID: Js0CF7WQM73

Bug 1433671: Make AccessibleCaretManager flushes a bit more sound. r=TYLin The accessible caret manager is owned by the event hub, that is owned by the shell. All the callers of methods that call FlushLayout on the AccessibleCaretManager should hold an external reference to the event hub. Flushing pending notifications can run arbitrary script, that can call Destroy() on the pres shell (and thus tear down the accessible caret event hub, and the manager with him). I don't know why before my change this wasn't crashing badly, but the code as it was just doesn't look sound to me at all either (maybe I'm misunderstanding something and I should just revert that patch and give up on having nice invariants during our flushes..., but I don't think it's the case). This also adds some sanity-checking that we don't die under our flush. MozReview-Commit-ID: 4s0UT0fD3TI

Bug 1433589: Fix sheet invalidation in quirks mode documents. r?bz MozReview-Commit-ID: 7rwH647bVwr

Bug 1433974 - Update BUG_COMPONENT for some of the new Testing components, r=jmaher MozReview-Commit-ID: 7jQnnAhOzEr

Bug 1284548 - Use 'Share Audio' label for sharing audio played in <video>. r=snorp? Vary the 'Share [...]' label depending on the actual use of the <video> tag, as is done for the 'Save [...]' label. MozReview-Commit-ID: Ga6RqV5dCby

Bug 1284548 - Put logic classifying <video> element based on content in a function and reuse it. r=snorp? MozReview-Commit-ID: 8ken4L8fEqq

Bug 1430817: Serialize <overflow-position> before other align bits. r=mats Otherwise the serialisation wouldn't roundtrip with the new syntax, which fixes the position of <overflow-position>. Also make Servo and Gecko agree on whether to serialize "unsafe". MozReview-Commit-ID: L3GSMk5pZ3F

Backout changeset 715eee480c0f (bug 1430817) for landing with the wrong author information. r=backout This reverts commit 18c7bed08d17b890aaf1329e1d36f9278917af53.

Bug 1430817: Update tests. r=mats MozReview-Commit-ID: 3kAGxIxUIcP