[Line Layout API] Convert a few RootInlineBox uses of layoutObject()

third_party/WebKit/Source/core/layout/line/RootInlineBox.cpp

 /*
  * Copyright (C) 2003, 2006, 2008 Apple Inc. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ skipping 274 matching lines @@
 
     bool leftGap, rightGap;
     block().getSelectionGapInfo(lineState, leftGap, rightGap);
 
     GapRects result;
 
     InlineBox* firstBox = firstSelectedBox();
     InlineBox* lastBox = lastSelectedBox();
     if (leftGap) {
         result.uniteLeft(block().logicalLeftSelectionGap(rootBlock, rootBlockPhysicalPosition, offsetFromRootBlock,
-            &firstBox->parent()->layoutObject(), firstBox->logicalLeft(), selTop, selHeight, paintInfo));
+            firstBox->parent()->lineLayoutItem(), firstBox->logicalLeft(), selTop, selHeight, paintInfo));
     }
     if (rightGap) {
         result.uniteRight(block().logicalRightSelectionGap(rootBlock, rootBlockPhysicalPosition, offsetFromRootBlock,
-            &lastBox->parent()->layoutObject(), lastBox->logicalRight(), selTop, selHeight, paintInfo));
+            lastBox->parent()->lineLayoutItem(), lastBox->logicalRight(), selTop, selHeight, paintInfo));
     }
 
     // When dealing with bidi text, a non-contiguous selection region is possible.
     // e.g. The logical text aaaAAAbbb (capitals denote RTL text and non-capitals LTR) is laid out
     // visually as 3 text runs |aaa|bbb|AAA| if we select 4 characters from the start of the text the
     // selection will look like (underline denotes selection):
     // |aaa|bbb|AAA|
     //  ___       _
     // We can see that the |bbb| run is not part of the selection while the runs around it are.
     if (firstBox && firstBox != lastBox) {
@@ skipping 443 matching lines @@
     endBox = nullptr;
     return nullptr;
 }
 
 const char* RootInlineBox::boxName() const
 {
     return "RootInlineBox";
 }
 
 } // namespace blink