Bug 888615 - [Australis] Reland the patch for bug 877767 which was backed out in the landing of Australis.
Bug 888615 - [Australis] Add a drawtitle attribute for XUL root elements. When drawtitle="true" is set, even drawintitlebar windows will have a window title. r=roc, r=smichaud
Bug 888615 - Only draw window titles for windows with drawtitle=true. r=smichaud
Bug 944937 - Add a shim for Services.metro on non-Metro platforms. r=mbrubeck
Bug 951186 - Propagate the current compositor in ContentHostBase::UseTextureHost. r=nical