[LayoutNG] Add NGLineBoxFragment

third_party/WebKit/Source/core/layout/ng/ng_fragment_builder.cc

Index: third_party/WebKit/Source/core/layout/ng/ng_fragment_builder.cc
diff --git a/third_party/WebKit/Source/core/layout/ng/ng_fragment_builder.cc b/third_party/WebKit/Source/core/layout/ng/ng_fragment_builder.cc
index 7348e7eafef395d96fd3c677172ae6fa200444a3..51d4b5fae1581d13d8b4c4b3589d20f5b24b278c 100644
--- a/third_party/WebKit/Source/core/layout/ng/ng_fragment_builder.cc
+++ b/third_party/WebKit/Source/core/layout/ng/ng_fragment_builder.cc
@@ -161,7 +161,6 @@ NGFragmentBuilder& NGFragmentBuilder::AddOutOfFlowDescendant(
 }
 
 RefPtr<NGLayoutResult> NGFragmentBuilder::ToBoxFragment() {
-  // TODO(layout-ng): Support text fragments
   DCHECK_EQ(type_, NGPhysicalFragment::kFragmentBox);
   DCHECK_EQ(offsets_.size(), children_.size());
 
@@ -198,18 +197,4 @@ RefPtr<NGLayoutResult> NGFragmentBuilder::ToBoxFragment() {
                          out_of_flow_positions_, unpositioned_floats_));
 }
 
-RefPtr<NGPhysicalTextFragment> NGFragmentBuilder::ToTextFragment(
-    unsigned index,
-    unsigned start_offset,
-    unsigned end_offset) {
-  DCHECK_EQ(type_, NGPhysicalFragment::kFragmentText);
-  DCHECK(children_.isEmpty());
-  DCHECK(offsets_.isEmpty());
-
-  return adoptRef(new NGPhysicalTextFragment(
-      node_->GetLayoutObject(), toNGInlineNode(node_), index, start_offset,
-      end_offset, size_.ConvertToPhysical(writing_mode_),
-      overflow_.ConvertToPhysical(writing_mode_)));
-}
-
 }  // namespace blink