[LayoutNG] Fix empty inlines to influence the used line height

third_party/WebKit/Source/core/layout/ng/inline/ng_line_box_fragment_builder.cc

Index: third_party/WebKit/Source/core/layout/ng/inline/ng_line_box_fragment_builder.cc
diff --git a/third_party/WebKit/Source/core/layout/ng/inline/ng_line_box_fragment_builder.cc b/third_party/WebKit/Source/core/layout/ng/inline/ng_line_box_fragment_builder.cc
index baeab067e48f6e7641afdcb2b5b3a34988e74dd7..e972c2c052494d9204933f81ce05ad7b9c17798f 100644
--- a/third_party/WebKit/Source/core/layout/ng/inline/ng_line_box_fragment_builder.cc
+++ b/third_party/WebKit/Source/core/layout/ng/inline/ng_line_box_fragment_builder.cc
@@ -13,10 +13,8 @@
 
 namespace blink {
 
-NGLineBoxFragmentBuilder::NGLineBoxFragmentBuilder(
-    NGInlineNode* node,
-    const NGLineHeightMetrics& metrics)
-    : direction_(TextDirection::kLtr), node_(node), metrics_(metrics) {}
+NGLineBoxFragmentBuilder::NGLineBoxFragmentBuilder(NGInlineNode* node)
+    : direction_(TextDirection::kLtr), node_(node) {}
 
 NGLineBoxFragmentBuilder& NGLineBoxFragmentBuilder::SetDirection(
     TextDirection direction) {
@@ -51,9 +49,8 @@ void NGLineBoxFragmentBuilder::MoveChildrenInBlockDirection(LayoutUnit delta,
     offsets_[index].block_offset += delta;
 }
 
-void NGLineBoxFragmentBuilder::UniteMetrics(
-    const NGLineHeightMetrics& metrics) {
-  metrics_.Unite(metrics);
+void NGLineBoxFragmentBuilder::SetMetrics(const NGLineHeightMetrics& metrics) {
+  metrics_ = metrics;
 }
 
 void NGLineBoxFragmentBuilder::SetBreakToken(