Add container_block_offset,top_offset to NGFloatingObject.

third_party/WebKit/Source/core/layout/ng/inline/ng_inline_layout_algorithm.cc

Index: third_party/WebKit/Source/core/layout/ng/inline/ng_inline_layout_algorithm.cc
diff --git a/third_party/WebKit/Source/core/layout/ng/inline/ng_inline_layout_algorithm.cc b/third_party/WebKit/Source/core/layout/ng/inline/ng_inline_layout_algorithm.cc
index 2f108e1c039b1b000f73d21da54b39857489a291..67efa0412ba77cbfcd3f1c57e11c738efadfc3e7 100644
--- a/third_party/WebKit/Source/core/layout/ng/inline/ng_inline_layout_algorithm.cc
+++ b/third_party/WebKit/Source/core/layout/ng/inline/ng_inline_layout_algorithm.cc
@@ -43,9 +43,10 @@ RefPtr<NGConstraintSpace> CreateConstraintSpaceForFloat(
       .ToConstraintSpace(FromPlatformWritingMode(style.GetWritingMode()));
 }
 
-NGLogicalOffset GetOriginPointForFloats(const NGConstraintSpace& space,
-                                        LayoutUnit content_size) {
-  NGLogicalOffset origin_point = space.BfcOffset();
+NGLogicalOffset GetOriginPointForFloats(
+    const NGLogicalOffset& container_bfc_offset,
+    LayoutUnit content_size) {
+  NGLogicalOffset origin_point = container_bfc_offset;
   origin_point.block_offset += content_size;
   return origin_point;
 }
@@ -295,7 +296,7 @@ bool NGInlineLayoutAlgorithm::CreateLineUpToLastBreakOpportunity() {
 #endif
 
   NGLogicalOffset origin_point =
-      GetOriginPointForFloats(ConstraintSpace(), content_size_);
+      GetOriginPointForFloats(ContainerBfcOffset(), content_size_);
   PositionPendingFloats(origin_point.block_offset, &container_builder_,
                         MutableConstraintSpace());
   FindNextLayoutOpportunity();
@@ -375,16 +376,16 @@ void NGInlineLayoutAlgorithm::LayoutAndPositionFloat(
       ToNGPhysicalBoxFragment(layout_result->PhysicalFragment().Get()));
 
   NGLogicalOffset origin_offset =
-      GetOriginPointForFloats(ConstraintSpace(), content_size_);
-  NGLogicalOffset from_offset = ConstraintSpace().BfcOffset();
+      GetOriginPointForFloats(ContainerBfcOffset(), content_size_);
   const ComputedStyle& float_style = node->Style();
   NGBoxStrut margins = ComputeMargins(ConstraintSpace(), float_style,
                                       ConstraintSpace().WritingMode(),
                                       ConstraintSpace().Direction());
   RefPtr<NGFloatingObject> floating_object = NGFloatingObject::Create(
       float_style, float_space->WritingMode(), current_opportunity_.size,
-      origin_offset, from_offset, margins,
+      origin_offset, ContainerBfcOffset(), margins,
       layout_result->PhysicalFragment().Get());
+  floating_object->parent_bfc_block_offset = ContainerBfcOffset().block_offset;
 
   bool float_does_not_fit = end_position + float_fragment.InlineSize() >
                             current_opportunity_.InlineSize();