CLOBBER for the backout of bug 1087560
Bug 1087453. Don't put scroll info layers on top of content that is not scrolled by their associated scroll frame. r=roc
Bug 1083373 part 2: Assert that array index is in-bounds, and cast it from char to size_t to fix clang warning. r=edwin
Backed out changeset ac5e69c40ff1 (bug 1089480) for m-2 bustage on a CLOSED TREE
Bug 912196 - Workaround no-alpha-with-ANGLE in WebGL, not GLContext. - r=kamidphish
Bug 912196 - Fixes for D3D11 ANGLE. - r=kamidphish
Bug 912196 - Deal with reading RGBA from RGBX. - r=kamidphish
Bug 912196 - (ANGLE) Fix CopyTexImage. - r=kamidphish
Bug 912196 - Handle alpha for webgl backbuffer copyTexImage reads. - r=kamidphish
Bug 912196 - Determine workarounds before we run dependent code. - r=kamidphish
Bug 971897: Use xpct{stubs,invoke}_x86_64 from linux/unix on OpenBSD/amd64 for consistency r=bsmedberg

This fixes the download panel issue, and brings us revs 727721e5d8ac,
844b142d8111 and 236989b3a807 as a bonus. Remove the unmaintained
OpenBSD/amd64 specific versions.
Merge m-c to m-i
Bug 1085321 - Remove gfxContext::Arc/NegativeArc. r=Bas
Bug 1088781 - Rename nsLayoutUtils::GetStringWidth to nsLayoutUtils::AppUnitWidthOfStringBidi. r=dholbert
Bug 1080688 - Calculate SVG rect bounds using a simple rect transform rather than using a Moz2D Path. r=longsonr
Bug 1076446 (attempt 2) - Make the DMD test work on Windows. r=glandium.
Bug 1085566 - Make the preventExtensions hook return succeeded/failed rather than always indicate failure by reporting an error.  r=efaust

--HG--
extra : rebase_source : 487b569d23ce18f39fc53697e5f25cc789885803
Bug 1052139 - Reorder the preventExtensions trap just after the [[Prototype]]-access traps.  r=code-motion

--HG--
extra : rebase_source : ea85bf1daa26ec7a32caf2656ebf99c6e2757cfa
Bug 1085680 - OdinMonkey: change argument type of Math.min/max from 'int' to 'signed' (r=bbouvier)

--HG--
extra : rebase_source : c40fcd056b6e5cc3eb16ea1486c99e3186706d4b
Bug 1085680 - OdinMonkey: remove MathRetType (r=bbouvier)

--HG--
extra : rebase_source : 755aa9b665c82ecba3de8be8722c5f543b88ef42