Bug 972286 - switch to attributes instead of classes for overflowedItem and for the Australis panel subview anchor, r=MattN

--HG--
extra : rebase_source : 5645e31d32f2707ba1ccb4e30854a570bfea7232
Bug 979640 - Make build system error on missing test files; r=ted

Previously, the build system may silently missing test files defined in
manifests. This patch makes missing test files a fatal error, detected
when reading test manifests.

The test_bug872273.html XBL test appeared to be orphaned in
content/xbl/test. It has been reunited with its family.

dom/tests/mochitest/notification referenced a single test file which was
recently deleted. That manifest has been removed.

Missing test files related to the Python unit tests for the build system
have been added. (They are a bunch of empty files.)

--HG--
extra : rebase_source : 8c64986169064401951585c07deadada8c905550
Bug 972286 - fix negation issue in Australis panel detection CSS, r=MattN

--HG--
extra : rebase_source : 683cc6d9b6482647b7a3227d5d77785ef53944e2
Backed out changeset 593206fbd97e (bug 979640) for mochitest-other failures.
CLOSED TREE
Bug 979640 - Make build system error on missing test files; r=ted

Previously, the build system may silently missing test files defined in
manifests. This patch makes missing test files a fatal error, detected
when reading test manifests.

The test_bug872273.html XBL test appeared to be orphaned in
content/xbl/test. It has been reunited with its family.

dom/tests/mochitest/notification referenced a single test file which was
recently deleted. That manifest has been removed.

Missing test files related to the Python unit tests for the build system
have been added. (They are a bunch of empty files.)

--HG--
extra : amend_source : cb6b9bf91e57569c8be312d3c16fef69b2b0b950
Bug 978003 - Update inContentUI.css for Windows 8 and up. r=mdeboer
Bug 975794 - Toolbarbuttons in the menu panel shouldn't get an inverted dropmarker when using a dark LWT. r=dao
backout 9ee8634f70dc because it didn't work
backout 4bc6027f5638 for causing bug 978741
Merge fxteam to m-c