[LayoutNG] Correct inline size for children of multicol containers.

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 9931eb2314d2e224017a8363e1573855b95075b3..5414305345fbac01a94cace30954db79a0d5e9e1 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
@@ -67,6 +67,24 @@ CORE_EXPORT LayoutUnit ComputeBlockSizeForFragment(const NGConstraintSpace&,
                                                    const ComputedStyle&,
                                                    LayoutUnit contentSize);
 
+// Based on available inline size, CSS computed column-width, CSS computed
+// column-count and CSS used column-gap, return CSS used column-count.
+CORE_EXPORT int ResolveUsedColumnCount(int computed_count,
+                                       LayoutUnit computed_size,
+                                       LayoutUnit used_gap,
+                                       LayoutUnit available_size);
+
+// Based on available inline size, CSS computed column-width, CSS computed
+// column-count and CSS used column-gap, return CSS used column-width.
+CORE_EXPORT LayoutUnit ResolveUsedColumnInlineSize(int computed_count,
+                                                   LayoutUnit computed_size,
+                                                   LayoutUnit used_gap,
+                                                   LayoutUnit available_size);
+CORE_EXPORT LayoutUnit ResolveUsedColumnInlineSize(LayoutUnit available_size,

[ikilpatrick, 2016/11/28 17:12:46]

.nit newline above this.

[mstensho (USE GERRIT), 2016/11/28 19:30:29]

Even if it's just an overload? The comment above applies to both functions.

+                                                   const ComputedStyle&);
+
+CORE_EXPORT LayoutUnit ResolveUsedColumnGap(const ComputedStyle&);
+
 CORE_EXPORT NGBoxStrut ComputeMargins(const NGConstraintSpace&,
                                       const ComputedStyle&,
                                       const NGWritingMode writing_mode,