Add CSS parsing support for the scroll-blocks-on property (in place of touch-action-delay)

Source/core/rendering/style/RenderStyleConstants.h

Index: Source/core/rendering/style/RenderStyleConstants.h
diff --git a/Source/core/rendering/style/RenderStyleConstants.h b/Source/core/rendering/style/RenderStyleConstants.h
index dc397a1a65c3ec5eb1d54127f05662d8a59cf40f..9499fe6187f41af65010e03adf8d15c7eba574ec 100644
--- a/Source/core/rendering/style/RenderStyleConstants.h
+++ b/Source/core/rendering/style/RenderStyleConstants.h
@@ -507,7 +507,16 @@ inline TouchAction& operator&= (TouchAction& a, TouchAction b) { return a = a &
 
 enum EIsolation { IsolationAuto, IsolationIsolate };
 
-enum TouchActionDelay { TouchActionDelayNone, TouchActionDelayScript };
+enum ScrollBlocksOn {
+    ScrollBlocksOnNone = 0x0,
+    ScrollBlocksOnStartTouch = 0x1,
+    ScrollBlocksOnWheelEvent = 0x2,
+    ScrollBlocksOnScrollEvent = 0x4,
+};
+inline ScrollBlocksOn operator| (ScrollBlocksOn a, ScrollBlocksOn b) { return ScrollBlocksOn(int(a) | int(b)); }
+inline ScrollBlocksOn& operator|= (ScrollBlocksOn& a, ScrollBlocksOn b) { return a = a | b; }
+inline ScrollBlocksOn operator& (ScrollBlocksOn a, ScrollBlocksOn b) { return ScrollBlocksOn(int(a) & int(b)); }
+inline ScrollBlocksOn& operator&= (ScrollBlocksOn& a, ScrollBlocksOn b) { return a = a & b; }
 
 enum ItemPosition {
     ItemPositionAuto,