Bug 914815 - Support profiler options when starting the profiler with a signal. r=jld
Bug 914547 Ensure the DirectX headers can be found when necessary r=jgilbert
Bug 903285 - Add referent count reporting to pref service memory reporter. r=njn
Bug 856437 - Remove LookupMethod test coverage. r=gabor
Bug 856437 - Remove lookupMethod API. r=gabor
Bug 856437 - Remove same-compartment permissive Xray machinery. r=gabor
Bug 903327 - Use device pixels per css pixel when calculating default font sizes. r=kats
Backed out 7 changesets (bug 906088) for robocop failures on a CLOSED TREE.

Backed out changeset c5b4781bd918 (bug 906088)
Backed out changeset a498d1641c16 (bug 906088)
Backed out changeset fcff9ef5cf7d (bug 906088)
Backed out changeset cf1603d47f6c (bug 906088)
Backed out changeset 8671264a5aaa (bug 906088)
Backed out changeset 01d6b977021f (bug 906088)
Backed out changeset 2910cc092c19 (bug 906088)
Bug 911786 - Part 2: Reapply relative positioning when moving frames without reflowing them. r=dholbert
Bug 916988 - NS_IsMainThread does not GC, r=terrence

--HG--
extra : rebase_source : 8a85b2bcf4f52b6f09b3ac06da9d205c572ae6e0
Backed out changeset 52218c11ec89 (bug 887819) for reftest failures.
DONTBUILD
Backout changeset 2766d0ee65c5 (bug 903802) to fix bug 906378.
Bug 912806 - Special-case the resolution behaviour on Fennec to work around other bugs. r=tn
Bug 912144 - Use the composition bounds instead of the viewport for hit testing. r=BenWa
Merge inbound to m-c.
Merge b2g-inbound to m-c.
Merge fx-team to m-c.
Bug 855949 - Network Per-App Metering on WebSocket. r=mcmanus
Bug 915506 - ensure AeroPeek is fully disabled with e10s.  r=felipe
Bug 915511 - prevent SessionStore.getWindowValue failing with e10s. r=felipe