Use Layout Opportunity Iterator to position new FC blocks.

third_party/WebKit/Source/core/layout/ng/ng_fragment_builder.h

 // 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.
 
 #ifndef NGFragmentBuilder_h
 #define NGFragmentBuilder_h
 
 #include "core/layout/ng/inline/ng_physical_text_fragment.h"
 #include "core/layout/ng/ng_break_token.h"
 #include "core/layout/ng/ng_constraint_space.h"
@@ skipping 20 matching lines @@
   NGFragmentBuilder& SetBlockSize(LayoutUnit);
   NGLogicalSize Size() const { return size_; }
 
   NGFragmentBuilder& SetOverflowSize(const NGLogicalSize&);
   NGFragmentBuilder& SetBlockOverflow(LayoutUnit);
 
   NGFragmentBuilder& AddChild(RefPtr<NGLayoutResult>, const NGLogicalOffset&);
   NGFragmentBuilder& AddChild(RefPtr<NGPhysicalFragment>,
                               const NGLogicalOffset&);
 
-  NGFragmentBuilder& AddFloatingObject(RefPtr<NGFloatingObject>,
-                                       const NGLogicalOffset&);
-
   NGFragmentBuilder& SetBfcOffset(const NGLogicalOffset& offset);
 
   NGFragmentBuilder& AddUnpositionedFloat(
       RefPtr<NGFloatingObject> floating_object);
 
   // Builder has non-trivial out-of-flow descendant methods.
   // These methods are building blocks for implementation of
   // out-of-flow descendants by layout algorithms.
   //
   // They are intended to be used by layout algorithm like this:
@@ skipping 53 matching lines @@
   // Mutable list of floats that need to be positioned.
   Vector<RefPtr<NGFloatingObject>>& MutableUnpositionedFloats() {
     return unpositioned_floats_;
   }
 
   // List of floats that need to be positioned.
   const Vector<RefPtr<NGFloatingObject>>& UnpositionedFloats() const {
     return unpositioned_floats_;
   }
 
+  // Mutable list of positioned floats, i.e. floats with logical_offset set.
+  Vector<RefPtr<NGFloatingObject>>& MutablePositionedFloats() {
+    return positioned_floats_;
+  }
+
   const WTF::Optional<NGLogicalOffset>& BfcOffset() const {
     return bfc_offset_;
   }
 
   const Vector<RefPtr<NGPhysicalFragment>>& Children() const {
     return children_;
   }
 
   bool DidBreak() const { return did_break_; }
 
@@ skipping 37 matching lines @@
   WeakBoxList out_of_flow_descendant_candidates_;
   Vector<OutOfFlowPlacement> out_of_flow_candidate_placements_;
 
   WeakBoxList out_of_flow_descendants_;
   Vector<NGStaticPosition> out_of_flow_positions_;
 
   // Floats that need to be positioned by the next in-flow fragment that can
   // determine its block position in space.
   Vector<RefPtr<NGFloatingObject>> unpositioned_floats_;
 
-  Vector<NGLogicalOffset> floating_object_offsets_;
   Vector<RefPtr<NGFloatingObject>> positioned_floats_;
 
   WTF::Optional<NGLogicalOffset> bfc_offset_;
   NGMarginStrut end_margin_strut_;
 };
 
 }  // namespace blink
 
 #endif  // NGFragmentBuilder