Always position floats from fragment->PositionedFloats list.

third_party/WebKit/Source/core/layout/ng/ng_block_node.cc

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "core/layout/ng/ng_block_node.h"
 
 #include "core/layout/LayoutBlockFlow.h"
 #include "core/layout/LayoutMultiColumnFlowThread.h"
 #include "core/layout/LayoutMultiColumnSet.h"
 #include "core/layout/api/LineLayoutAPIShim.h"
@@ skipping 261 matching lines @@
   layout_box_->SetHeight(fragment->Size().height);
   NGBoxStrut border_and_padding = ComputeBorders(constraint_space, Style()) +
                                   ComputePadding(constraint_space, Style());
   LayoutUnit intrinsic_logical_height =
       layout_box_->Style()->IsHorizontalWritingMode()
           ? fragment->OverflowSize().height
           : fragment->OverflowSize().width;
   intrinsic_logical_height -= border_and_padding.BlockSum();
   layout_box_->SetIntrinsicContentLogicalHeight(intrinsic_logical_height);
 
-  // We may still have unpositioned floats when we reach the root box.
-  if (!layout_box_->Parent()) {
-    for (const NGPositionedFloat& positioned_float :
-         fragment->PositionedFloats()) {
-      FloatingObjectPositionedUpdated(positioned_float, layout_box_);
-    }
-  }
+  for (const NGPositionedFloat& positioned_float : fragment->PositionedFloats())
+    FloatingObjectPositionedUpdated(positioned_float, layout_box_);
 
   for (const auto& child_fragment : fragment->Children()) {
     if (child_fragment->IsPlaced())
       FragmentPositionUpdated(ToNGPhysicalBoxFragment(*child_fragment));
 
     for (const NGPositionedFloat& positioned_float :
          ToNGPhysicalBoxFragment(child_fragment.Get())->PositionedFloats()) {
       FloatingObjectPositionedUpdated(
           positioned_float, ToLayoutBox(child_fragment->GetLayoutObject()));
     }
@@ skipping 72 matching lines @@
 
 // Save static position for legacy AbsPos layout.
 void NGBlockNode::SaveStaticOffsetForLegacy(const NGLogicalOffset& offset) {
   DCHECK(layout_box_->IsOutOfFlowPositioned());
   DCHECK(layout_box_->Layer());
   layout_box_->Layer()->SetStaticBlockPosition(offset.block_offset);
   layout_box_->Layer()->SetStaticInlinePosition(offset.inline_offset);
 }
 
 }  // namespace blink