[LayoutNG] Initial support for the 'vertical-align' property

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

Index: third_party/WebKit/Source/core/layout/ng/inline/ng_inline_layout_algorithm.h
diff --git a/third_party/WebKit/Source/core/layout/ng/inline/ng_inline_layout_algorithm.h b/third_party/WebKit/Source/core/layout/ng/inline/ng_inline_layout_algorithm.h
index e369232db48568532166fa7e8a1f55ee63a380f1..042dcbc49d63376e8cf94b3239a8d07c0177b276 100644
--- a/third_party/WebKit/Source/core/layout/ng/inline/ng_inline_layout_algorithm.h
+++ b/third_party/WebKit/Source/core/layout/ng/inline/ng_inline_layout_algorithm.h
@@ -7,6 +7,7 @@
 
 #include "core/CoreExport.h"
 #include "core/layout/ng/geometry/ng_logical_offset.h"
+#include "core/layout/ng/inline/ng_inline_box_state.h"
 #include "core/layout/ng/inline/ng_inline_break_token.h"
 #include "core/layout/ng/inline/ng_line_height_metrics.h"
 #include "core/layout/ng/ng_constraint_space_builder.h"
@@ -137,10 +138,22 @@ class CORE_EXPORT NGInlineLayoutAlgorithm final
                                NGLineBoxFragmentBuilder*,
                                NGTextFragmentBuilder*);
 
+  NGInlineBoxState* OnBeginPlaceItems();

[ikilpatrick, 2017/04/18 01:04:37]

Oh, sorry, does it make sense to move, OnBeginPlaceItems, OnOpenTag, OnCloseTag,
etc, inside that object?

+  NGInlineBoxState* OnOpenTag(const NGLayoutInlineItem&,
+                              NGLineBoxFragmentBuilder*,
+                              NGTextFragmentBuilder*);
+  NGInlineBoxState* OnCloseTag(const NGLayoutInlineItem&,
+                               NGLineBoxFragmentBuilder*,
+                               NGInlineBoxState*);
+  void OnEndPlaceItems(NGLineBoxFragmentBuilder*);
+  void EndBoxState(NGInlineBoxState*, NGLineBoxFragmentBuilder*);
+  void ApplyBaselineShift(NGInlineBoxState*, NGLineBoxFragmentBuilder*);
+
   // Finds the next layout opportunity for the next text fragment.
   void FindNextLayoutOpportunity();
 
   Vector<RefPtr<NGLayoutResult>, 32> layout_results_;
+  NGInlineLayoutStateStack box_states_;
   unsigned start_index_ = 0;
   unsigned start_offset_ = 0;
   unsigned last_index_ = 0;