Bug 1056155 - Follow-up to bug 1051985 to not assume only ContainerLayers have FrameMetrics. r=mattwoodrow
Bug 1056159 - Extract a helper struct to hold some of the parameters to UpdatePanZoomControllerTree. r=botond
Bug 1056159 - Extract a helper function from UpdatePanZoomControllerTree. r=botond
try: -b do -p linux64 -u all -t none
Bug 1055760 - Move the scroll handoff parent id from Layer to FrameMetrics. r=
Bug 1055760 - Modify Layers API to expose multiple FrameMetrics and APZCs per layer
Bug 1055760 - Default to using the 0th FrameMetrics. r=
Bug 1055760 - Fix up layers.cpp FrameMetrics accessing. r=
Bug 1055760 - Add a LayerMetricsWrapper and fix up APZCTreeManager FrameMetrics accessing. r=