Utility routines for ng_units

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

Index: third_party/WebKit/Source/core/layout/ng/ng_units.h
diff --git a/third_party/WebKit/Source/core/layout/ng/ng_units.h b/third_party/WebKit/Source/core/layout/ng/ng_units.h
index 8ea43bdcf50770ac4797cbb2cf439f2712889127..a6cad5b5cec036eec190539f6c3e434eade6659e 100644
--- a/third_party/WebKit/Source/core/layout/ng/ng_units.h
+++ b/third_party/WebKit/Source/core/layout/ng/ng_units.h
@@ -16,10 +16,12 @@ namespace blink {
 class LayoutUnit;
 struct NGPhysicalOffset;
 struct NGPhysicalSize;
+struct NGBoxStrut;
 
 struct MinAndMaxContentSizes {
   LayoutUnit min_content;
   LayoutUnit max_content;
+  LayoutUnit ShrinkToFit(LayoutUnit available_size) const;
 };
 
 struct NGLogicalSize {
@@ -38,6 +40,11 @@ struct NGLogicalSize {
   }
 };
 
+inline std::ostream& operator<<(std::ostream& stream,
+                                const NGLogicalSize& value) {
+  return stream << value.inline_size << "x" << value.block_size;
+}
+
 // NGLogicalOffset is the position of a rect (typically a fragment) relative to
 // its parent rect in the logical coordinate system.
 struct NGLogicalOffset {
@@ -167,16 +174,17 @@ struct NGPixelSnappedPhysicalRect {
 // Struct to store physical dimensions, independent of writing mode and
 // direction.
 // See https://drafts.csswg.org/css-writing-modes-3/#abstract-box
-struct NGPhysicalBoxStrut {
+struct CORE_EXPORT NGPhysicalBoxStrut {
   LayoutUnit left;
   LayoutUnit right;
   LayoutUnit top;
   LayoutUnit bottom;
+  NGBoxStrut ConvertToLogical(NGWritingMode, TextDirection) const;
 };
 
 // This struct is used for storing margins, borders or padding of a box on all
 // four edges.
-struct NGBoxStrut {
+struct CORE_EXPORT NGBoxStrut {
   LayoutUnit inline_start;
   LayoutUnit inline_end;
   LayoutUnit block_start;