Bug 831020 - Errors in the error console with very long reference lines hang the browser. r=neil

--HG--
extra : rebase_source : ac09c6d4bad6eff76691a950f1ec7d5d8b342cfc
Backout bug 793204. r=me
Bug 830996 - implement a way to DRY mozbase packages for m-c;r=wlach ; DONTBUILD because NPOTB
Bug 826135 - Throw if --utility-path points to ARM version of xpcshell, r=ahal
Merge m-c to inbound.
Bug 825379 - IonMonkey: Differential Testing: Getting different output w/without --ion-eager with forEach. r=dvander
Bug 816298 - Part 1: Allow child elements to override -moz-user-select:none. r=ehsan

--HG--
extra : rebase_source : f4e08713be0691c25b22510977c978088655ec8b
Bug 816298 - Part 2: Replace references to -moz-user-select:-moz-none with -moz-user-select:none. r=ehsan r=enndeakin

--HG--
extra : rebase_source : 4763e08113fb49a282fc04af072f60b74046e2c4
Bug 832949 - Disable common Organize options when the Downloads view is in use. r=mak.
Bug 831149 - Expose SpecialPowers to conent scripts via a lazy getter, r=philikon
Bug 831805: Block malicious Mozilla Framework Assistant (em:creator is Mozilla.org). r=Mossop
Bug 832360 - Store an object's class as part of its type, r=jandem.
Bug 744745 - Prevent overlay being made transparent from site CSS. r=jaws
Bug 833392 - Send RP ID within mozChromeEvents; r=jparsons
Bug 832153: Move SVGMaskElement to mozilla::dom r=bz

--HG--
rename : content/svg/content/src/nsSVGMaskElement.cpp => content/svg/content/src/SVGMaskElement.cpp
rename : content/svg/content/src/nsSVGMaskElement.h => content/svg/content/src/SVGMaskElement.h
Bug 832153 - Convert SVGMaskElement to WebIDL r=bz
Back out 06d0d20fbaf1 (bug 825379) for apparently causing bc perma-orange.
Bug 833931: Suppress unused-result warnings in OfflineCacheUpdateParent.cpp w/ mozilla::unused. r=mayhemer
Bug 792935 - Add tests for canPlayType for DASH (Media Mochitests) r=cpearce
Bug 792935 - Add DASH to gSmallTests and gSeekTests to manifest.js (Media Mochitests) r=cpearce