Introduce InlineTextBoxesOf() for ease of loop over InlineTextBox of LayoutText

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

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009 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.
@@ skipping 688 matching lines @@
           } else {
             yield(LayoutRect(
                 logical_top,
                 LayoutUnit(child_line->Y() - child_line->MarginLogicalLeft()),
                 logical_height, logical_width));
           }
         }
       }
     } else if (curr->IsText()) {
       LayoutText* curr_text = ToLayoutText(curr);
-      for (InlineTextBox* child_text = curr_text->FirstTextBox(); child_text;
-           child_text = child_text->NextTextBox()) {
+      for (InlineTextBox* child_text : InlineTextBoxesOf(*curr_text)) {
         RootInlineBox& root_box = child_text->Root();
         ComputeItemTopHeight(container, root_box, &logical_top,
                              &logical_height);
         if (is_horizontal)
           yield(LayoutRect(child_text->X(), logical_top,
                            child_text->LogicalWidth(), logical_height));
         else
           yield(LayoutRect(logical_top, child_text->Y(), logical_height,
                            child_text->LogicalWidth()));
       }
@@ skipping 612 matching lines @@
         if (curr_box->InlineBoxWrapper())
           curr_box->InlineBoxWrapper()->Root().MarkDirty();
       } else if (!curr->SelfNeedsLayout()) {
         if (curr->IsLayoutInline()) {
           LayoutInline* curr_inline = ToLayoutInline(curr);
           for (InlineFlowBox* child_line = curr_inline->FirstLineBox();
                child_line; child_line = child_line->NextLineBox())
             child_line->Root().MarkDirty();
         } else if (curr->IsText()) {
           LayoutText* curr_text = ToLayoutText(curr);
-          for (InlineTextBox* child_text = curr_text->FirstTextBox();
-               child_text; child_text = child_text->NextTextBox())
+          for (InlineTextBox* child_text : InlineTextBoxesOf(*curr_text))
             child_text->Root().MarkDirty();
         }
       }
     }
   } else {
     line_boxes_.DirtyLineBoxes();
   }
 }
 
 InlineFlowBox* LayoutInline::CreateInlineFlowBox() {
@@ skipping 196 matching lines @@
     paint_invalidator.InvalidateDisplayItemClient(*box, invalidation_reason);
 }
 
 // TODO(lunalu): Not to just dump 0, 0 as the x and y here
 LayoutRect LayoutInline::DebugRect() const {
   IntRect lines_box = EnclosingIntRect(LinesBoundingBox());
   return LayoutRect(IntRect(0, 0, lines_box.Width(), lines_box.Height()));
 }
 
 }  // namespace blink