[LayoutNG] Handle border and padding when sizing a block and when placing its children.

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

Index: third_party/WebKit/Source/core/layout/ng/ng_length_utils.h
diff --git a/third_party/WebKit/Source/core/layout/ng/ng_length_utils.h b/third_party/WebKit/Source/core/layout/ng/ng_length_utils.h
index ee849bb8601aca97f0cb9ddc7706b216dacca5ba..96e50dc91f1b3aec7b9734a53afb95a92860af7f 100644
--- a/third_party/WebKit/Source/core/layout/ng/ng_length_utils.h
+++ b/third_party/WebKit/Source/core/layout/ng/ng_length_utils.h
@@ -49,6 +49,21 @@ CORE_EXPORT LayoutUnit computeBlockSizeForFragment(const NGConstraintSpace&,
                                                    const ComputedStyle&,
                                                    LayoutUnit contentSize);
 
+CORE_EXPORT LayoutUnit
+computeBorderAndPaddingBlockStart(const NGConstraintSpace&,
+                                  const ComputedStyle&);
+
+CORE_EXPORT LayoutUnit computeBorderAndPaddingBlockEnd(const NGConstraintSpace&,
+                                                       const ComputedStyle&);
+
+CORE_EXPORT LayoutUnit
+computeBorderAndPaddingInlineStart(const NGConstraintSpace&,
+                                   const ComputedStyle&);
+
+CORE_EXPORT LayoutUnit
+computeBorderAndPaddingInlineEnd(const NGConstraintSpace&,
+                                 const ComputedStyle&);
+
 CORE_EXPORT NGBoxStrut computeMargins(const NGConstraintSpace&,
                                       const ComputedStyle&);