Animations: Port ProgrammaticScrollAnimator to use compositor timelines

LayoutTests/TestExpectations

Index: LayoutTests/TestExpectations
diff --git a/LayoutTests/TestExpectations b/LayoutTests/TestExpectations
index 62223c7132945d2f1292c17cb899f18691e8901e..9ae0725399ee650527c12a0640fe9f137b4780f2 100644
--- a/LayoutTests/TestExpectations
+++ b/LayoutTests/TestExpectations
@@ -1379,12 +1379,15 @@ crbug.com/461238 [ Linux Win Debug ] editing/execCommand/delete-non-editable-ran
 crbug.com/364614 [ Mac ] fast/scroll-behavior/overflow-scroll-animates.html [ Skip ]
 crbug.com/364614 [ Mac ] virtual/threaded/fast/scroll-behavior/overflow-scroll-animates.html [ Skip ]
 crbug.com/364614 [ Mac ] virtual/scroll_customization/fast/scroll-behavior/overflow-scroll-animates.html [ Skip ]
+crbug.com/364614 [ Mac ] virtual/threaded_animation_timelines/fast/scroll-behavior/overflow-scroll-animates.html [ Skip ]
 crbug.com/364614 [ Mac ] fast/scroll-behavior/overflow-scroll-root-frame-animates.html [ Skip ]
 crbug.com/364614 [ Mac ] virtual/threaded/fast/scroll-behavior/overflow-scroll-root-frame-animates.html [ Skip ]
 crbug.com/364614 [ Mac ] virtual/scroll_customization/fast/scroll-behavior/overflow-scroll-root-frame-animates.html [ Skip ]
+crbug.com/364614 [ Mac ] virtual/threaded_animation_timelines/fast/scroll-behavior/overflow-scroll-root-frame-animates.html [ Skip ]
 crbug.com/487880 [ Win ] fast/scroll-behavior/overflow-scroll-animates.html [ Pass Timeout ]
 crbug.com/487880 [ Win Linux ] virtual/threaded/fast/scroll-behavior/overflow-scroll-animates.html [ Pass Timeout ]
 crbug.com/487880 [ Win ] virtual/scroll_customization/fast/scroll-behavior/overflow-scroll-animates.html [ Pass Timeout ]
+crbug.com/487880 [ Win Linux ] virtual/threaded_animation_timelines/fast/scroll-behavior/overflow-scroll-animates.html [ Pass Timeout ]
 
 crbug.com/445889 fast/inline/fixed-pos-moves-with-abspos-inline-parent.html [ Pass Failure ]
 
@@ -1703,6 +1706,7 @@ crbug.com/503875 inspector/sources/debugger-step/debugger-step-into-document-wri
 crbug.com/450493 [ Win ] http/tests/inspector/resource-tree/resource-tree-frame-navigate.html [ Failure Pass ]
 crbug.com/450493 [ Win ] inspector/console/console-trace-arguments.html [ Failure Pass ]
 crbug.com/450493 [ Win ] virtual/threaded/fast/scroll-behavior/subframe-interrupted-scroll.html [ Failure Pass ]
+crbug.com/513143 virtual/threaded_animation_timelines/fast/scroll-behavior/subframe-interrupted-scroll.html [ Failure Pass ]
 
 # Very flaky on Win Debug since it was last updated in r191233
 crbug.com/461903 [ Win Debug ] media/encrypted-media/encrypted-media-waiting-for-a-key.html [ Pass Failure ]