Bug 1638928 Part 2 - Rename nsIFrame's GetChildLists() to ChildLists(). r=mats

This patch is generated by using my editor's rename functionality.

In the next patch, `nsIFrame::` prefix is going to be removed manually
from all the ChildLists() calls.

Differential Revision: https://phabricator.services.mozilla.com/D75893

layout/base/AccessibleCaretManager.cpp

@@ -1274,7 +1274,7 @@ nsRect AccessibleCaretManager::GetAllChildFrameRectsUnion(
        frame = frame->GetNextContinuation()) {
     nsRect frameRect;
 
-    for (const auto& childList : frame->GetChildLists()) {
+    for (const auto& childList : frame->ChildLists()) {
       // Loop all children to union their scrollable overflow rect.
       for (nsIFrame* child : childList.mList) {
         nsRect childRect = child->GetScrollableOverflowRectRelativeToSelf();

layout/base/PresShell.cpp

@@ -2745,7 +2745,7 @@ void PresShell::FrameNeedsReflow(nsIFrame* aFrame,
           }
         }
 
-        for (const auto& childList : f->GetChildLists()) {
+        for (const auto& childList : f->ChildLists()) {
           for (nsIFrame* kid : childList.mList) {
             if (styleChange) {
               kid->MarkIntrinsicISizesDirty();
@@ -3990,7 +3990,7 @@ static void AssertFrameSubtreeIsSane(const nsIFrame& aRoot) {
                "Node not in the flattened tree still has a frame?");
   }
 
-  for (const auto& childList : aRoot.GetChildLists()) {
+  for (const auto& childList : aRoot.ChildLists()) {
     for (const nsIFrame* child : childList.mList) {
       AssertFrameSubtreeIsSane(*child);
     }
@@ -5828,7 +5828,7 @@ void PresShell::MarkFramesInSubtreeApproximatelyVisible(
   // We assume all frames in popups are visible, so we skip them here.
   const nsIFrame::ChildListIDs skip = {nsIFrame::kPopupList,
                                        nsIFrame::kSelectPopupList};
-  for (const auto& [list, listID] : aFrame->GetChildLists()) {
+  for (const auto& [list, listID] : aFrame->ChildLists()) {
     if (skip.contains(listID)) {
       continue;
     }
@@ -9933,8 +9933,8 @@ static bool CompareTrees(nsPresContext* aFirstPresContext,
   // if (aFirstFrame->IsScrollbarFrame())
   //  return true;
   bool ok = true;
-  const auto& childLists1 = aFirstFrame->GetChildLists();
-  const auto& childLists2 = aSecondFrame->GetChildLists();
+  const auto& childLists1 = aFirstFrame->ChildLists();
+  const auto& childLists2 = aSecondFrame->ChildLists();
   auto iterLists1 = childLists1.begin();
   auto iterLists2 = childLists2.begin();
   do {

layout/base/RestyleManager.cpp

@@ -922,7 +922,7 @@ static bool ContainingBlockChangeAffectsDescendants(
   // All fixed-pos containing blocks should also be abs-pos containing blocks.
   MOZ_ASSERT_IF(aIsFixedPosContainingBlock, aIsAbsPosContainingBlock);
 
-  for (const auto& childList : aFrame->GetChildLists()) {
+  for (const auto& childList : aFrame->ChildLists()) {
     for (nsIFrame* f : childList.mList) {
       if (f->IsPlaceholderFrame()) {
         nsIFrame* outOfFlow = nsPlaceholderFrame::GetRealFrameForPlaceholder(f);
@@ -1102,7 +1102,7 @@ static void SyncViewsAndInvalidateDescendants(nsIFrame* aFrame,
 
   aFrame->SyncFrameViewProperties();
 
-  for (const auto& [list, listID] : aFrame->GetChildLists()) {
+  for (const auto& [list, listID] : aFrame->ChildLists()) {
     for (nsIFrame* child : list) {
       if (!(child->GetStateBits() & NS_FRAME_OUT_OF_FLOW)) {
         // only do frames that don't have placeholders
@@ -1172,7 +1172,7 @@ static void AddSubtreeToOverflowTracker(
     aOverflowChangedTracker.AddFrame(aFrame,
                                      OverflowChangedTracker::CHILDREN_CHANGED);
   }
-  for (const auto& childList : aFrame->GetChildLists()) {
+  for (const auto& childList : aFrame->ChildLists()) {
     for (nsIFrame* child : childList.mList) {
       AddSubtreeToOverflowTracker(child, aOverflowChangedTracker);
     }
@@ -3562,7 +3562,7 @@ void RestyleManager::ReparentFrameDescendants(nsIFrame* aFrame,
     // that is going to go away anyway in seconds.
     return;
   }
-  for (const auto& childList : aFrame->GetChildLists()) {
+  for (const auto& childList : aFrame->ChildLists()) {
     for (nsIFrame* child : childList.mList) {
       // only do frames that are in flow
       if (!(child->GetStateBits() & NS_FRAME_OUT_OF_FLOW) &&

layout/base/nsFrameManager.cpp

@@ -163,7 +163,7 @@ void nsFrameManager::CaptureFrameState(nsIFrame* aFrame,
   CaptureFrameStateFor(aFrame, aState);
 
   // Now capture state recursively for the frame hierarchy rooted at aFrame
-  for (const auto& childList : aFrame->GetChildLists()) {
+  for (const auto& childList : aFrame->ChildLists()) {
     for (nsIFrame* child : childList.mList) {
       if (child->GetStateBits() & NS_FRAME_OUT_OF_FLOW) {
         // We'll pick it up when we get to its placeholder
@@ -233,7 +233,7 @@ void nsFrameManager::RestoreFrameState(nsIFrame* aFrame,
   RestoreFrameStateFor(aFrame, aState);
 
   // Now restore state recursively for the frame hierarchy rooted at aFrame
-  for (const auto& childList : aFrame->GetChildLists()) {
+  for (const auto& childList : aFrame->ChildLists()) {
     for (nsIFrame* child : childList.mList) {
       RestoreFrameState(child, aState);
     }

layout/base/nsLayoutUtils.cpp

@@ -550,7 +550,7 @@ void nsLayoutUtils::UnionChildOverflow(nsIFrame* aFrame,
   FrameChildListIDs skip(aSkipChildLists);
   skip += {nsIFrame::kSelectPopupList, nsIFrame::kPopupList};
 
-  for (const auto& [list, listID] : aFrame->GetChildLists()) {
+  for (const auto& [list, listID] : aFrame->ChildLists()) {
     if (skip.contains(listID)) {
       continue;
     }
@@ -1414,7 +1414,7 @@ nsContainerFrame* nsLayoutUtils::LastContinuationWithChild(
     nsContainerFrame* aFrame) {
   MOZ_ASSERT(aFrame, "NULL frame pointer");
   for (auto f = aFrame->LastContinuation(); f; f = f->GetPrevContinuation()) {
-    for (const auto& childList : f->GetChildLists()) {
+    for (const auto& childList : f->ChildLists()) {
       if (MOZ_LIKELY(!childList.mList.IsEmpty())) {
         return static_cast<nsContainerFrame*>(f);
       }
@@ -5862,7 +5862,7 @@ void nsLayoutUtils::MarkDescendantsDirty(nsIFrame* aSubtreeRoot) {
         }
       }
 
-      for (const auto& childList : f->GetChildLists()) {
+      for (const auto& childList : f->ChildLists()) {
         for (nsIFrame* kid : childList.mList) {
           stack.AppendElement(kid);
         }
@@ -5886,7 +5886,7 @@ void nsLayoutUtils::MarkIntrinsicISizesDirtyIfDependentOnBSize(
     }
     f->MarkIntrinsicISizesDirty();
 
-    for (const auto& childList : f->GetChildLists()) {
+    for (const auto& childList : f->ChildLists()) {
       for (nsIFrame* kid : childList.mList) {
         stack.AppendElement(kid);
       }
@@ -6518,7 +6518,7 @@ nscoord nsLayoutUtils::CalculateContentBEnd(WritingMode aWM, nsIFrame* aFrame) {
           std::max(contentBEnd, CalculateBlockContentBEnd(aWM, blockFrame));
       skip += nsIFrame::kPrincipalList;
     }
-    for (const auto& [list, listID] : aFrame->GetChildLists()) {
+    for (const auto& [list, listID] : aFrame->ChildLists()) {
       if (!skip.contains(listID)) {
         for (nsIFrame* child : list) {
           nscoord offset =
@@ -7918,7 +7918,7 @@ void nsLayoutUtils::AssertTreeOnlyEmptyNextInFlows(nsIFrame* aSubtreeRoot) {
   NS_ASSERTION(start == end || IsInLetterFrame(aSubtreeRoot),
                "frame tree not empty, but caller reported complete status");
 
-  for (const auto& childList : aSubtreeRoot->GetChildLists()) {
+  for (const auto& childList : aSubtreeRoot->ChildLists()) {
     for (nsIFrame* child : childList.mList) {
       nsLayoutUtils::AssertTreeOnlyEmptyNextInFlows(child);
     }
@@ -8111,7 +8111,7 @@ size_t nsLayoutUtils::SizeOfTextRunsForFrames(nsIFrame* aFrame,
     return total;
   }
 
-  for (const auto& childList : aFrame->GetChildLists()) {
+  for (const auto& childList : aFrame->ChildLists()) {
     for (nsIFrame* f : childList.mList) {
       total += SizeOfTextRunsForFrames(f, aMallocSizeOf, clear);
     }

layout/generic/DetailsFrame.cpp

@@ -121,7 +121,7 @@ void DetailsFrame::AppendAnonymousContentTo(nsTArray<nsIContent*>& aElements,
 bool DetailsFrame::HasMainSummaryFrame(nsIFrame* aSummaryFrame) {
   const ChildListIDs flowLists = {kPrincipalList, kOverflowList};
   for (nsIFrame* frag = this; frag; frag = frag->GetNextInFlow()) {
-    for (const auto& [list, listID] : frag->GetChildLists()) {
+    for (const auto& [list, listID] : frag->ChildLists()) {
       if (!flowLists.contains(listID)) {
         continue;
       }

layout/generic/ReflowInput.cpp

@@ -592,7 +592,7 @@ void ReflowInput::InitResizeFlags(nsPresContext* aPresContext,
 
       do {
         nsIFrame* f = stack.PopLastElement();
-        for (const auto& childList : f->GetChildLists()) {
+        for (const auto& childList : f->ChildLists()) {
           for (nsIFrame* kid : childList.mList) {
             kid->MarkIntrinsicISizesDirty();
             stack.AppendElement(kid);

layout/generic/ScrollAnchorContainer.cpp

@@ -636,7 +636,7 @@ ScrollAnchorContainer::ExamineAnchorCandidate(nsIFrame* aFrame) const {
 
 nsIFrame* ScrollAnchorContainer::FindAnchorIn(nsIFrame* aFrame) const {
   // Visit the child lists of this frame
-  for (const auto& [list, listID] : aFrame->GetChildLists()) {
+  for (const auto& [list, listID] : aFrame->ChildLists()) {
     // Skip child lists that contain out-of-flow frames, we'll visit them by
     // following placeholders in the in-flow lists so that we visit these
     // frames in DOM order.

layout/generic/nsBlockFrame.cpp

@@ -526,7 +526,7 @@ void nsBlockFrame::List(FILE* out, const char* aPrefix,
   // skip the principal list - we printed the lines above
   // skip the overflow list - we printed the overflow lines above
   ChildListIDs skip = {kPrincipalList, kOverflowList};
-  for (const auto& [list, listID] : nsIFrame::GetChildLists()) {
+  for (const auto& [list, listID] : nsIFrame::ChildLists()) {
     if (skip.contains(listID)) {
       continue;
     }

layout/generic/nsContainerFrame.cpp

@@ -995,7 +995,7 @@ void nsContainerFrame::PositionChildViews(nsIFrame* aFrame) {
   // view for popups is managed by the parent. Currently only nsMenuFrame
   // and nsPopupSetFrame have a popupList and during layout will adjust the
   // view manually to position the popup.
-  for (const auto& [list, listID] : aFrame->GetChildLists()) {
+  for (const auto& [list, listID] : aFrame->ChildLists()) {
     if (listID == kPopupList) {
       continue;
     }
@@ -2423,7 +2423,7 @@ void nsContainerFrame::SanityCheckChildListsBeforeReflow() const {
                "At start of reflow, we should've pulled items back from all "
                "NIFs and cleared the state bit stored in didPushItemsBit in "
                "the process.");
-    for (const auto& [list, listID] : f->GetChildLists()) {
+    for (const auto& [list, listID] : f->ChildLists()) {
       if (!itemLists.contains(listID)) {
         MOZ_ASSERT(absLists.contains(listID) || listID == kBackdropList,
                    "unexpected non-empty child list");
@@ -2484,7 +2484,7 @@ void nsContainerFrame::List(FILE* out, const char* aPrefix,
 
   // Output the children
   bool outputOneList = false;
-  for (const auto& [list, listID] : nsIFrame::GetChildLists()) {
+  for (const auto& [list, listID] : nsIFrame::ChildLists()) {
     if (outputOneList) {
       str += aPrefix;
     }
@@ -2529,7 +2529,7 @@ void nsContainerFrame::ListWithMatchedRules(FILE* out,
   childPrefix += aPrefix;
   childPrefix += "  ";
 
-  for (const auto& childList : nsIFrame::GetChildLists()) {
+  for (const auto& childList : nsIFrame::ChildLists()) {
     for (const nsIFrame* kid : childList.mList) {
       kid->ListWithMatchedRules(out, childPrefix.get());
     }

layout/generic/nsFlexContainerFrame.cpp

@@ -2207,7 +2207,7 @@ static bool FrameHasRelativeBSizeDependency(nsIFrame* aFrame) {
   if (aFrame->HasAnyStateBits(NS_FRAME_CONTAINS_RELATIVE_BSIZE)) {
     return true;
   }
-  for (const auto& childList : aFrame->GetChildLists()) {
+  for (const auto& childList : aFrame->ChildLists()) {
     for (nsIFrame* childFrame : childList.mList) {
       if (childFrame->HasAnyStateBits(NS_FRAME_CONTAINS_RELATIVE_BSIZE)) {
         return true;

layout/generic/nsFontInflationData.cpp

@@ -320,7 +320,7 @@ void nsFontInflationData::ScanTextIn(nsIFrame* aFrame) {
   // FIXME: Should probably only scan the text that's actually going to
   // be inflated!
 
-  for (const auto& childList : aFrame->GetChildLists()) {
+  for (const auto& childList : aFrame->ChildLists()) {
     for (nsIFrame* kid : childList.mList) {
       if (kid->GetStateBits() & NS_FRAME_FONT_INFLATION_FLOW_ROOT) {
         // Goes in a different set of inflation data.

layout/generic/nsFrame.cpp

@@ -365,7 +365,7 @@ bool nsIFrame::CheckAndClearPaintedState() {
   bool result = (GetStateBits() & NS_FRAME_PAINTED_THEBES);
   RemoveStateBits(NS_FRAME_PAINTED_THEBES);
 
-  for (const auto& childList : GetChildLists()) {
+  for (const auto& childList : ChildLists()) {
     for (nsIFrame* child : childList.mList) {
       if (child->CheckAndClearPaintedState()) {
         result = true;
@@ -379,7 +379,7 @@ bool nsIFrame::CheckAndClearDisplayListState() {
   bool result = BuiltDisplayList();
   SetBuiltDisplayList(false);
 
-  for (const auto& childList : GetChildLists()) {
+  for (const auto& childList : ChildLists()) {
     for (nsIFrame* child : childList.mList) {
       if (child->CheckAndClearDisplayListState()) {
         result = true;
@@ -1459,7 +1459,7 @@ void nsIFrame::ReparentFrameViewTo(nsViewManager* aViewManager,
     aViewManager->InsertChild(aNewParentView, view, insertBefore,
                               insertBefore != nullptr);
   } else if (GetStateBits() & NS_FRAME_HAS_CHILD_WITH_VIEW) {
-    for (const auto& childList : GetChildLists()) {
+    for (const auto& childList : ChildLists()) {
       // Iterate the child frames, and check each child frame to see if it has
       // a view
       for (nsIFrame* child : childList.mList) {
@@ -5798,7 +5798,7 @@ void nsIFrame::MarkSubtreeDirty() {
   // - TableColGroup
   // - XULBox
   AutoTArray<nsIFrame*, 32> stack;
-  for (const auto& childLists : GetChildLists()) {
+  for (const auto& childLists : ChildLists()) {
     for (nsIFrame* kid : childLists.mList) {
       stack.AppendElement(kid);
     }
@@ -5812,7 +5812,7 @@ void nsIFrame::MarkSubtreeDirty() {
 
     f->AddStateBits(NS_FRAME_IS_DIRTY);
 
-    for (const auto& childLists : f->GetChildLists()) {
+    for (const auto& childLists : f->ChildLists()) {
       for (nsIFrame* kid : childLists.mList) {
         stack.AppendElement(kid);
       }
@@ -6763,7 +6763,7 @@ nsRect nsContainerFrame::ComputeSimpleTightBounds(
   }
 
   nsRect r(0, 0, 0, 0);
-  for (const auto& childLists : nsIFrame::GetChildLists()) {
+  for (const auto& childLists : nsIFrame::ChildLists()) {
     for (nsIFrame* child : childLists.mList) {
       r.UnionRect(
           r, child->ComputeTightBounds(aDrawTarget) + child->GetPosition());
@@ -9627,7 +9627,7 @@ static nsRect UnionBorderBoxes(
       nsIFrame::kPopupList,    nsIFrame::kSelectPopupList,
       nsIFrame::kAbsoluteList, nsIFrame::kFixedList,
       nsIFrame::kFloatList,    nsIFrame::kOverflowList};
-  for (const auto& [list, listID] : aFrame->GetChildLists()) {
+  for (const auto& [list, listID] : aFrame->ChildLists()) {
     if (skip.contains(listID)) {
       continue;
     }
@@ -9975,7 +9975,7 @@ bool nsIFrame::FinishAndStoreOverflow(nsOverflowAreas& aOverflowAreas,
 
 void nsIFrame::RecomputePerspectiveChildrenOverflow(
     const nsIFrame* aStartFrame) {
-  for (const auto& childList : GetChildLists()) {
+  for (const auto& childList : ChildLists()) {
     for (nsIFrame* child : childList.mList) {
       if (!child->FrameMaintainsOverflow()) {
         continue;  // frame does not maintain overflow rects
@@ -10014,7 +10014,7 @@ void nsIFrame::ComputePreserve3DChildrenOverflow(
 
   nsRect childVisual;
   nsRect childScrollable;
-  for (const auto& childList : GetChildLists()) {
+  for (const auto& childList : ChildLists()) {
     for (nsIFrame* child : childList.mList) {
       // If this child participates in the 3d context, then take the
       // pre-transform region (which contains all descendants that aren't
@@ -11456,7 +11456,7 @@ void nsIFrame::AddSizeOfExcludingThisForTree(nsWindowSizes& aSizes) const {
     }
   }
 
-  for (const auto& childList : GetChildLists()) {
+  for (const auto& childList : ChildLists()) {
     for (const nsIFrame* f : childList.mList) {
       f->AddSizeOfExcludingThisForTree(aSizes);
     }
@@ -11624,7 +11624,7 @@ CompositorHitTestInfo nsIFrame::GetCompositorHitTestInfo(
 
 // Returns true if we can guarantee there is no visible descendants.
 static bool HasNoVisibleDescendants(const nsIFrame* aFrame) {
-  for (const auto& childList : aFrame->GetChildLists()) {
+  for (const auto& childList : aFrame->ChildLists()) {
     for (nsIFrame* f : childList.mList) {
       if (nsPlaceholderFrame::GetRealFrameFor(f)
               ->IsVisibleOrMayHaveVisibleDescendants()) {

layout/generic/nsGfxScrollFrame.cpp

@@ -956,7 +956,7 @@ static void GetScrollableOverflowForPerspective(
     nsPoint aOffset, nsRect& aScrolledFrameOverflowArea) {
   // Iterate over all children except pop-ups.
   FrameChildListIDs skip = {nsIFrame::kSelectPopupList, nsIFrame::kPopupList};
-  for (const auto& [list, listID] : aCurrentFrame->GetChildLists()) {
+  for (const auto& [list, listID] : aCurrentFrame->ChildLists()) {
     if (skip.contains(listID)) {
       continue;
     }
@@ -2412,7 +2412,7 @@ static void AdjustViews(nsIFrame* aFrame) {
 
   // Call AdjustViews recursively for all child frames except the popup list as
   // the views for popups are not scrolled.
-  for (const auto& [list, listID] : aFrame->GetChildLists()) {
+  for (const auto& [list, listID] : aFrame->ChildLists()) {
     if (listID == nsIFrame::kPopupList) {
       continue;
     }
@@ -6925,7 +6925,7 @@ static void CollectScrollPositionsForSnap(
     return;
   }
 
-  for (const auto& childList : aFrame->GetChildLists()) {
+  for (const auto& childList : aFrame->ChildLists()) {
     for (nsIFrame* f : childList.mList) {
       const nsStyleDisplay* styleDisplay = f->StyleDisplay();
       if (styleDisplay->mScrollSnapAlign.inline_ !=
@@ -7118,7 +7118,7 @@ static nsSliderFrame* GetSliderFrame(nsIFrame* aScrollbarFrame) {
     return nullptr;
   }
 
-  for (const auto& childList : aScrollbarFrame->GetChildLists()) {
+  for (const auto& childList : aScrollbarFrame->ChildLists()) {
     for (nsIFrame* frame : childList.mList) {
       if (nsSliderFrame* sliderFrame = do_QueryFrame(frame)) {
         return sliderFrame;

layout/generic/nsIFrame.h

@@ -1652,7 +1652,7 @@ class nsIFrame : public nsQueryFrame {
   /**
    * Returns the child lists for this frame.
    */
-  AutoTArray<ChildList, 4> GetChildLists() const {
+  AutoTArray<ChildList, 4> ChildLists() const {
     AutoTArray<ChildList, 4> childLists;
     GetChildLists(&childLists);
     return childLists;

layout/generic/nsPageSequenceFrame.cpp

@@ -405,7 +405,7 @@ static void GetPrintCanvasElementsInFrame(
   if (!aFrame) {
     return;
   }
-  for (const auto& childList : aFrame->GetChildLists()) {
+  for (const auto& childList : aFrame->ChildLists()) {
     for (nsIFrame* child : childList.mList) {
       // Check if child is a nsHTMLCanvasFrame.
       nsHTMLCanvasFrame* canvasFrame = do_QueryFrame(child);

layout/generic/nsSubDocumentFrame.cpp

@@ -982,7 +982,7 @@ nsIDocShell* nsSubDocumentFrame::GetDocShell() {
 static void DestroyDisplayItemDataForFrames(nsIFrame* aFrame) {
   FrameLayerBuilder::DestroyDisplayItemDataFor(aFrame);
 
-  for (const auto& childList : aFrame->GetChildLists()) {
+  for (const auto& childList : aFrame->ChildLists()) {
     for (nsIFrame* child : childList.mList) {
       DestroyDisplayItemDataForFrames(child);
     }

layout/painting/nsDisplayList.cpp

@@ -1261,7 +1261,7 @@ void nsDisplayListBuilder::MarkFramesForDisplayList(
  */
 void nsDisplayListBuilder::MarkPreserve3DFramesForDisplayList(
     nsIFrame* aDirtyFrame) {
-  for (const auto& childList : aDirtyFrame->GetChildLists()) {
+  for (const auto& childList : aDirtyFrame->ChildLists()) {
     for (nsIFrame* child : childList.mList) {
       if (child->Combines3DTransformWithAncestors()) {
         MarkFrameForDisplay(child, aDirtyFrame);

layout/style/nsFontFaceUtils.cpp

@@ -182,7 +182,7 @@ void nsFontFaceUtils::MarkDirtyForFontChange(nsIFrame* aSubtreeRoot,
           }
         }
 
-        for (const auto& childList : f->GetChildLists()) {
+        for (const auto& childList : f->ChildLists()) {
           for (nsIFrame* kid : childList.mList) {
             stack.AppendElement(std::make_pair(kid, alreadyScheduled));
           }

layout/xul/nsDeckFrame.cpp

@@ -200,7 +200,7 @@ void nsDeckFrame::Animate(nsIFrame* aParentBox, bool start) {
       imgFrame->StopAnimation();
   }
 
-  for (const auto& childList : aParentBox->GetChildLists()) {
+  for (const auto& childList : aParentBox->ChildLists()) {
     for (nsIFrame* child : childList.mList) {
       Animate(child, start);
     }

layout/xul/nsScrollbarFrame.cpp

@@ -272,7 +272,7 @@ int32_t nsScrollbarFrame::MoveToNewPosition() {
     return curpos;
   }
   // notify all nsSliderFrames of the change
-  for (const auto& childList : nsIFrame::GetChildLists()) {
+  for (const auto& childList : nsIFrame::ChildLists()) {
     for (nsIFrame* f : childList.mList) {
       nsSliderFrame* sliderFrame = do_QueryFrame(f);
       if (sliderFrame) {