Bug 952397 - Merge |mach valgrind-test| and valgrind_test.py. r=ted.
Bug 947309 - DevTools themes - use new icons for toolbar;r=paul
Bug 948139 - Use UITelemetry to capture clicks on the 'switch to desktop' appbar item. r=mbrubeck
Bug 946320 - [Australis] history widget missing a "Tabs From Other Devices" entry. r=Gijs
Bug 933926 - [Australis] Hide customization palette during transition phase. r=Unfocused
Merge m-c to fx-team.
Bug 952734 - Sources with LabeledStatements makes ParserHelpers.getNodeLocation puke, r=past
Bug 952767 - Variables view scopes should always be lazily populated, r=past
Bug 951633 - Drop the <xul:menulist> support for WidgetMethods, r=past
Bug 951633 - Fix tests after the WidgetMethods API changes, r=past
Bug 952767 - Yield waiting for the FETCHED_VARIABLES event and fix a few typos in browser_dbg_variables-view-override-01.js, r=past
Bug 951633 - Change the wording in some WidgetMethods comments, r=past
Bug 951633 - Fix assertion typos in browser_dbg_stack-02.js, r=past
Bug 946320 - Followup, remove all logins after disabling sync. r=me

--HG--
extra : rebase_source : 1a0da944bb2cde11e899b78b2421ab87837553d2
Bug 953993.
Bug 955870 - Backout unwanted part of patch r=me
Merge m-c into fx-team
Bug 952592 - [Australis] Collect sizemode from first window in BrowserUITelemetry. r=Gijs.
Bug 923856 - `SyntaxError: JSON.parse: unexpected character` in network inspector response, r=msucan,vporof
Bug 935815 - [Australis] UITour: Allow adding a button with an action to the info panel. r=MattN