Bug 1319222 - Enable host compilation in the tup backend; r?Build MozReview-Commit-ID: 4hp6oH7YOd7

Bug 1319222 - Add include flags to HOST_*; r?chmanchester This accounts for LOCAL_INCLUDES in the moz.build files, as well as the default INCLUDES specified in config.mk that are used for host compilation. MozReview-Commit-ID: J1LxIZVeFJ

Bug 1319222 - Enable compilation on all directories in the tup backend; r?Build MozReview-Commit-ID: D5NlgEHVydZ

Bug 1319222 - Compile the generated IPDL and WebIDL sources in the tup backend; r?Build The filenames that these objects generate are passed into the _handle_* methods instead of with a Sources object, so they need to be added to the BackendTupfile's list of sources separately. MozReview-Commit-ID: GoqhiJ3Ismm

Bug 1319222 - Add DEFINES, LIBRARY_DEFINES and LOCAL_INCLUDES to ASFLAGS; r?chmanchester These flags are all needed to get the full command-line for assembly compilation. An example of a file that fails without them is unix64.S in objdir/config/external/ffi. MozReview-Commit-ID: Bkm3621ImJG

Bug 1319222 - Change --param flag to be multiple arguments; r?Build This flag should be two parameters, the first of which is '--param', and the second is the parameter, such as 'inline-unit-growth=10000'. The recursive make backend lets this slide at the moment because PerSourceFlags aren't shell_quoted() there. MozReview-Commit-ID: 8vblYqCGxwg

Bug 1319222 - Use relobjdir instead of relativedir to determine outputs; r?Build In most cases, relobjdir is the same as relativedir. However they are different for some objects, notably with nss gyp handling. We need to output files in relobjdir, so use that when getting the BackendTupfile. This puts generated files like certdata.c in the directory that moz.build is expecting. MozReview-Commit-ID: DG29OulOKAz

Bug 1319222 - Remove srcdir from BackendTupfile; r?Build The srcdir does not necessarily directly correspond to the objdir, so it doesn't make sense to tie them together in BackendTupfile. Since the srcdir was only used for the IPDL sources, we can just replace that usage with a local variable. MozReview-Commit-ID: By0N30VTKhh

Bug 1417658 - Move export_suffixes into GeneratedFile; r=nalexander I believe all backends will need to know which GeneratedFiles are needed before compilation can start, so we should make that an attribute of the object. Each backend can then make its own decision about what to do with the different types of GeneratedFiles. MozReview-Commit-ID: ByburRx540b

Bug 951793 - Additional style support for overscroll-behavior in Stylo. r=emilio MozReview-Commit-ID: 9qLpF11YeU5

Bug 951793 - Add a test for the pref that controls overscroll-behavior. r=emilio MozReview-Commit-ID: 9qIuF1Vdsm4

Bug 951793 - Disable the timeout in the web-platform-test for overscroll-behavior. r=jgraham This is a manual test, and the timeout often prevents it from being run to completion manually. MozReview-Commit-ID: DXnqycq5hix

Bug 951793 - Update the manual web-platform-test to reflect the name change from scroll-boundary-behavior for overscroll-behavior. r=kats,jgraham MozReview-Commit-ID: 8oKvmzdzF30

Bug 951793 - Add overscroll-behavior to the layer dump. r=kats MozReview-Commit-ID: 629DKmrbVIi

Bug 951793 - Obey overscroll-behavior for swipe navigation. r=mstange MozReview-Commit-ID: i2BuiAfG71

Bug 951793 - Obey overscroll-behavior for any overscroll effect. r=kats MozReview-Commit-ID: HyATx3aCmmm

Bug 951793 - Obey overscroll-behavior for wheel and pan gesture events. r=kats MozReview-Commit-ID: EmbsMu9Esww

Bug 951793 - Remove ScrollDirection::NONE. r=kats ScrollDirection variables for which NONE was a valid value are replaced with Maybe<ScrollDirection>. I also took the opportunity to change the remaining ScrollDirection enumerators to eTitleCase as per style guide. MozReview-Commit-ID: GWejQR2HqH5

Bug 951793 - Obey overscroll-behavior for fling handoff. r=kats MozReview-Commit-ID: 9i2AgmW3Inm

Bug 951793 - Light refactoring to the fling handoff code. r=kats Passing FlingHandoffState around as an in-out parameter was making the next change (respecting overscroll-behavior) messy. MozReview-Commit-ID: 4wuoll20Jt7