Extract LayoutTableSection::CellStruct to a standalone class TableGridCell

third_party/WebKit/Source/core/layout/BUILD.gn

 # Copyright 2016 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 import("//third_party/WebKit/Source/core/core.gni")
 
 blink_core_sources("layout") {
   split_count = 5
 
   sources = [
@@ skipping 204 matching lines @@
     "PaintInvalidationState.cpp",
     "PaintInvalidationState.h",
     "PointerEventsHitRules.cpp",
     "PointerEventsHitRules.h",
     "ScrollAlignment.cpp",
     "ScrollAlignment.h",
     "ScrollAnchor.cpp",
     "ScrollAnchor.h",
     "SubtreeLayoutScope.cpp",
     "SubtreeLayoutScope.h",
+    "TableGridCell.cpp",
+    "TableGridCell.h",
     "TableLayoutAlgorithm.h",
     "TableLayoutAlgorithmAuto.cpp",
     "TableLayoutAlgorithmAuto.h",
     "TableLayoutAlgorithmFixed.cpp",
     "TableLayoutAlgorithmFixed.h",
     "TextAutosizer.cpp",
     "TextAutosizer.h",
     "TextRunConstructor.cpp",
     "TextRunConstructor.h",
     "TracedLayoutObject.cpp",
@@ skipping 237 matching lines @@
       "LayoutThemeAndroid.cpp",
       "LayoutThemeAndroid.h",
     ]
   }
 
   configs += [
     # TODO(jschuh): crbug.com/167187 fix size_t to int truncations.
     "//build/config/compiler:no_size_t_to_int_warning",
   ]
 }