Fix visibility warning (no bug, r=themaid)

--HG--
extra : rebase_source : 311a6406b1d2739389276589f23548c6fda89c98
bug 880911 implement tear off chat windows, r=felipe
Bug 884956 - Convert jsmath.cpp to CallArgs; r=Waldo
Bug 840242 - Use the runtime page size to control arena decommit; r=luke

--HG--
extra : rebase_source : e183246d7a2f381e015e7d860336330a726cb9f8
bug 809085 make permissions panels work with social content, r=felipe
Bug 885607 - Store the correct IonCode in the store buffer; r=bhackett

--HG--
extra : rebase_source : b2bdcdfde7d76bc4c341db94e680784a238a3f14
Bug 885607 - Make AsmJSModule's Global and ExportedFunction use RelocatablePtr; r=luke

--HG--
extra : rebase_source : bf0abf52aa28da2929264c42ec2d66dd0abea4b7
Additional test patch - Bug 843497 - Update check says 'up to date' for out of date versions on unsupported OS versions. r=bbondy
Bug 885608 - Call ScheduleReflowSVGNonDisplayText on character data mutations in a non-display <text>. r=longsonr

--HG--
extra : rebase_source : c6332ac1146dc71812c802a1160ee79ad266467e
Reftest comment fixups.  No bug.

--HG--
extra : rebase_source : b8dd7e8bde6bb5f394a3b4d1c431a2188d3abcef
Back out 01bc57172461:5bd9adbd3b15 (bug 843497) for xpcshell failures
Back out 7c8506b0729d (bug 843497) since I already backed out the rest of the bug's patches for xpcshell failures