Merge m-c to inbound.
Bug 838279 - Add isWow64 field to system info and to telemetry. r=bsmedberg
Bug 839236 - Add nsRefPtr to a nsPluginHost::GetInst call. r=bsmedberg
Bug 836570: Mark media/mtransport/build as FAIL_ON_WARNINGS on non-MSVC compilers. r=jesup
Bug 836954: Mark nsIFrame::GetBaseline() impls as MOZ_OVERRIDE. r=dbaron
Bug 837000: Remove nsBlockReflowState.h's essentially-unnecessary #include of nsBlockFrame.h (and related cleanup). r=dbaron
bug 834552 - remove a bunch of ipc/chromium/ that we don't even build r=bsmedberg
Bug 830463 - Download/update notification is showing up late on a weak connection in some cases. r=fabrice
Bug 839033 - Rename nsHTMLProgressElement to HTMLProgressElement. r=Ms2ger

--HG--
rename : content/html/content/src/nsHTMLProgressElement.cpp => content/html/content/src/HTMLProgressElement.cpp
rename : content/html/content/src/nsHTMLProgressElement.cpp => content/html/content/src/HTMLProgressElement.h
Bug 839033 - Convert HTMLProgressElement to WebIDL. r=Ms2ger
Bug 839033 - HTMLProgressElement cleanup. r=mounir
Bug 839701 - Use hidden=true/false instead of display=inline/none for hiding and showing the progress bar. r=rnewman
Bug 838636 - Guard against NPE in robocop setup; r=kats
Bug 837932 - Update dir svc media paths for Win7 and up - media dirs should point to Library default save locations. r=bsmedberg
Bug 704030 - Make the "all connections closed" check available on non debug builds. r=vladan.

--HG--
extra : rebase_source : 6f39e1e00b39e7356d29c4f5e3f77fa51ba49a16
Bug 839962 - Part 1: Replace some XPCOM refcount NS_ASSERTIONs with MOZ_ASSERTs. r=bsmedberg
Bug 839962 - Part 2: Replace some XPCOM thread NS_ASSERTIONs with MOZ_ASSERTs. r=bsmedberg
Backout 35d48d9d80d5 (bug 752982) for landing without proper review.
Bug 838822 - update marionette client version number, r=jgriffin
Bug 839027 - Kill object typeof hook. r=jorendorff