Bug 1613732 Part 2 - Remove unused ReflowChildFlags::NoVisibility. r=dholbert

This bit is set, but no function uses it.

Differential Revision: https://phabricator.services.mozilla.com/D61886

--HG--
extra : moz-landing-system : lando

layout/forms/nsComboboxControlFrame.cpp

@@ -439,7 +439,6 @@ void nsComboboxControlFrame::ReflowDropdown(nsPresContext* aPresContext,
   // dropped down
   ReflowChildFlags flags = mDroppedDown ? ReflowChildFlags::Default
                                         : ReflowChildFlags::NoMoveFrame |
-                                              ReflowChildFlags::NoVisibility |
                                               ReflowChildFlags::NoSizeView;
 
   // XXX Can this be different from the dropdown's writing mode?

layout/generic/nsIFrame.h

@@ -2585,16 +2585,13 @@ class nsIFrame : public nsQueryFrame {
     // Don't size the frame's view.
     NoSizeView = 1 << 2,
 
-    // TODO: This flag is not used. Will be removed.
-    NoVisibility = 1 << 3,
-
     // Only applies to ReflowChild; if true, don't delete the next-in-flow, even
     // if the reflow is fully complete.
-    NoDeleteNextInFlowChild = 1 << 4,
+    NoDeleteNextInFlowChild = 1 << 3,
 
     // Only applies to FinishReflowChild.  Tell it to call
     // ApplyRelativePositioning.
-    ApplyRelativePositioning = 1 << 5
+    ApplyRelativePositioning = 1 << 4,
   };
 
   /**

layout/xul/nsDeckFrame.cpp

@@ -213,8 +213,7 @@ nsDeckFrame::DoXULLayout(nsBoxLayoutState& aState) {
   // Make sure we tweak the state so it does not resize our children.
   // We will do that.
   ReflowChildFlags oldFlags = aState.LayoutFlags();
-  aState.SetLayoutFlags(ReflowChildFlags::NoSizeView |
-                        ReflowChildFlags::NoVisibility);
+  aState.SetLayoutFlags(ReflowChildFlags::NoSizeView);
 
   // do a normal layout
   nsresult rv = nsBoxFrame::DoXULLayout(aState);

layout/xul/nsMenuPopupFrame.cpp

@@ -989,8 +989,7 @@ void nsMenuPopupFrame::HidePopup(bool aDeselectMenu, nsPopupState aNewState) {
 }
 
 nsIFrame::ReflowChildFlags nsMenuPopupFrame::GetXULLayoutFlags() {
-  return ReflowChildFlags::NoSizeView | ReflowChildFlags::NoMoveView |
-         ReflowChildFlags::NoVisibility;
+  return ReflowChildFlags::NoSizeView | ReflowChildFlags::NoMoveView;
 }
 
 nsPoint nsMenuPopupFrame::AdjustPositionForAnchorAlign(nsRect& anchorRect,