Bug 1448667 - use ColorMatrix effect instead of LuminanceToAlpha effect for DrawTargetD2D1::IntoLuminanceSource. r=bas MozReview-Commit-ID: LHbSiFBx6HK

Bug 1447562 - Show the 3 pane inspector toggle button in nightly only. r=pbro

Bug 1433611 - Adjust the widths of the split box on toggling on the 3 pane inspector. r=pbro When the inspector is in landscape mode, it will first try to toggle on the 3 pane mode by creating a middle/bottom-left panel with the same sidebar width, but if doubling the original sidebar width will be bigger than half of the toolbox's width, we will instead toggle on the 3 pane mode with all panels being of equal widths. When the inspector is in portrait mode, it will just toggle on its T shape pane such that the 2 bottom panes are equal widths. We also increased the breakpoint width of the toolbox's side view to 1000px so that it will keep its T shape in portrait mode until the toolbox's width is bigger than 1000px.

Bug 1432793 - Add gtests for simulcast screenshare and odd resolutions; r=bwc MozReview-Commit-ID: ADBh7SCVgoC

Bug 1432793 - Add mochitest for odd simulcast resolutions; r=bwc This creates a simulcast stream with an odd resolution. This previously would have caused a runtime assertion failure and crash. MozReview-Commit-ID: IsywVOu6UeV

Bug 1432793 - Force screensharing simulcast to one layer and stop generating layers once an odd width and height are found; r=bwc This limits screensharing simulcast to a single layer. When window sharing, our source video can have arbitrary dimensions. If one of those dimensions ends up being odd, the aspect ratio of the smaller layer will not match the aspect ratio of the odd sized layer, causing a runtime assertion failure and crash. It is not sufficient to prevent the creation of odd sized layers in CreateEncoderStreams because the user can resize the window while it is being shared, which will cause a fatal assertion prior to the streams being recreated. When switching back from window sharing to camera, a call to CreateEncoderStreams will occur with resolutions matching the dimensions of the window that was just shared. To prevent a crash, this also adds a check which prevents the creation of layers with odd resolutions. Looking at cricket::GetSimulcastConfig for the version of webrtc.org in tree, the number of simulcast layers is limited to one, or two if a field experiment is enabled. That code also limits resolutions at which screensharing is allowed as well as the number of layers that can be created for each resolution, and ensures that each layer is exactly half the size of the layer above. Adding these new constraints to CreateEncoderStreams makes us more consistent with what the webrtc.org code would do when creating streams, which should help to avoid more assertion failures in the future. Long term, I believe we should just switch to using cricket::GetSimulcastConfig. MozReview-Commit-ID: 8gjdY5GPPjl

Backed out changeset 0222a82d1e90 (bug 1360198) for Talos exceptions on windows machines. CLOSED TREE

Backed out changeset 186241aaea35 (bug 1360198) for Talos exceptions on windows machines. CLOSED TREE

Bug 1451296 - Make enabling of font-variation-settings and font-optical-sizing properties dependent on adequate platform support at runtime. r=lsalzman

Bug 1449976 - Add regression test for fast-shadow clipping. r=jrmuizel

Bug 1449631 part 13. Remove now-unnecessary forwarding macros. r=smaug MozReview-Commit-ID: 6teO2KoGqUo

Bug 1449631 part 12. Remove the Nullable smuggling from nsIDOMEventTarget. r=smaug MozReview-Commit-ID: 73qhRSCpr3S

Bug 1449631 part 11. Remove nsIDOMEventTarget::AddSystemEventListener. r=smaug The security checks outer window did here don't seem right, because the whole point is that this method is only called by C++ code for its own purposes. We're not adding random untrusted listeners via addSystemEventListener! MozReview-Commit-ID: JdS5gTESclu

Bug 1449631 part 10. Devirtualize AddEventListener. r=smaug The CanCallerAccess check in the "webidl" version of nsGlobalWindowOuter::AddEventListener was pointless, because bindings never call things on outer windows. MozReview-Commit-ID: 1CGMJ277bPu

Bug 1449631 part 9. Remove nsIDOMEventTarget::AddEventListener. r=smaug Also switch the XPCOM-y version of EventTarget::AddEventListner to a Nullable<bool> for aWantsUntrusted. The three-arg overload of AddEventListener in ContentFrameMessageManager was never called, so all the AddEventListener overloads there are not needed. MozReview-Commit-ID: 4IhqHmPVWzE

Bug 1449631 part 8. Remove nsIDOMEventTarget::GetEventTargetParent. r=smaug MozReview-Commit-ID: 5wQ2LYrjUxf

Bug 1449631 part 7. Remove nsIDOMEventTarget::GetTargetFor* methods. r=smaug MozReview-Commit-ID: AIzDo67mTDf

Bug 1449631 part 6. Remove nsIDOMEventTarget::DispatchEvent. r=smaug MozReview-Commit-ID: 8YMgmMwZkAL

Bug 1449631 part 5. Move Will/Pre/PostHandleEvent out of nsIDOMEventTarget. r=smaug MozReview-Commit-ID: K2nOZNPy0XE

Bug 1449631 part 4. Remove nsIDOMEventTarget::GetContextForEventHandlers. r=smaug MozReview-Commit-ID: ID0FDvp28HY