[LayoutNG] Implement inline margins for atomic inline boxes

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

Index: third_party/WebKit/Source/core/layout/ng/inline/ng_inline_item_result.h
diff --git a/third_party/WebKit/Source/core/layout/ng/inline/ng_inline_item_result.h b/third_party/WebKit/Source/core/layout/ng/inline/ng_inline_item_result.h
index cf8ea096beb9223a0ad6875f84d7c923649928d5..0e527708d8b34d3b98af7c6367f0852931aa722e 100644
--- a/third_party/WebKit/Source/core/layout/ng/inline/ng_inline_item_result.h
+++ b/third_party/WebKit/Source/core/layout/ng/inline/ng_inline_item_result.h
@@ -5,6 +5,7 @@
 #ifndef NGInlineItemResult_h
 #define NGInlineItemResult_h
 
+#include "core/layout/ng/geometry/ng_box_strut.h"
 #include "core/layout/ng/ng_layout_result.h"
 #include "platform/LayoutUnit.h"
 #include "platform/fonts/shaping/ShapeResult.h"
@@ -38,6 +39,9 @@ struct CORE_EXPORT NGInlineItemResult {
   // NGLayoutResult for atomic inline items.
   RefPtr<NGLayoutResult> layout_result;
 
+  // NGBoxStrut for atomic inline items.
+  NGBoxStrut margins;
+
   NGInlineItemResult();
   NGInlineItemResult(unsigned index, unsigned start, unsigned end);
 };