Repeating header groups should align properly when captions are present

third_party/WebKit/Source/core/layout/LayoutTable.cpp

Index: third_party/WebKit/Source/core/layout/LayoutTable.cpp
diff --git a/third_party/WebKit/Source/core/layout/LayoutTable.cpp b/third_party/WebKit/Source/core/layout/LayoutTable.cpp
index d01f9f790e489a7b99a65cc3a06b322a53db4fa6..4e683f1d67806bcafe3edb7543f132e58dff476e 100644
--- a/third_party/WebKit/Source/core/layout/LayoutTable.cpp
+++ b/third_party/WebKit/Source/core/layout/LayoutTable.cpp
@@ -1471,6 +1471,14 @@ LayoutTableCell* LayoutTable::cellAfter(const LayoutTableCell* cell) const {
   return cell->section()->primaryCellAt(cell->rowIndex(), effCol);
 }
 
+LayoutTableCaption* LayoutTable::topCaption() const {
+  for (auto& caption : m_captions) {
+    if (caption->style()->captionSide() == ECaptionSide::Top)

[mstensho (USE GERRIT), 2016/10/17 19:21:13]

There may be more than one top caption.

+      return caption;
+  }
+  return nullptr;
+}
+
 int LayoutTable::baselinePosition(FontBaseline baselineType,
                                   bool firstLine,
                                   LineDirectionMode direction,