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

third_party/WebKit/Source/core/layout/svg/LayoutSVGInlineText.cpp

Index: third_party/WebKit/Source/core/layout/svg/LayoutSVGInlineText.cpp
diff --git a/third_party/WebKit/Source/core/layout/svg/LayoutSVGInlineText.cpp b/third_party/WebKit/Source/core/layout/svg/LayoutSVGInlineText.cpp
index 8d8bed6c8780dbc9907868ea24f60e3339db1ce7..9e2070a8a18704e3d64fe2c18f73d979f64b295a 100644
--- a/third_party/WebKit/Source/core/layout/svg/LayoutSVGInlineText.cpp
+++ b/third_party/WebKit/Source/core/layout/svg/LayoutSVGInlineText.cpp
@@ -125,7 +125,7 @@ LayoutRect LayoutSVGInlineText::LocalCaretRect(InlineBox* box,
 
 FloatRect LayoutSVGInlineText::FloatLinesBoundingBox() const {
   FloatRect bounding_box;
-  for (InlineTextBox* box = FirstTextBox(); box; box = box->NextTextBox())
+  for (InlineTextBox* box : InlineTextBoxesOf(*this))
     bounding_box.Unite(FloatRect(box->FrameRect()));
   return bounding_box;
 }
@@ -177,7 +177,7 @@ PositionWithAffinity LayoutSVGInlineText::PositionForPoint(
   const SVGTextFragment* closest_distance_fragment = nullptr;
   SVGInlineTextBox* closest_distance_box = nullptr;
 
-  for (InlineTextBox* box = FirstTextBox(); box; box = box->NextTextBox()) {
+  for (InlineTextBox* box : InlineTextBoxesOf(*this)) {
     if (!box->IsSVGInlineTextBox())
       continue;