InlinedVisitor: Migrate html to use inlined tracing

Source/core/html/track/vtt/VTTCue.cpp

Index: Source/core/html/track/vtt/VTTCue.cpp
diff --git a/Source/core/html/track/vtt/VTTCue.cpp b/Source/core/html/track/vtt/VTTCue.cpp
index 1b4970969dedd71198f12e5ddf8183ec75952f04..4bac32a98409deb9d3abe976449d98c582ec4305 100644
--- a/Source/core/html/track/vtt/VTTCue.cpp
+++ b/Source/core/html/track/vtt/VTTCue.cpp
@@ -211,7 +211,7 @@ LayoutObject* VTTCueBox::createRenderer(const LayoutStyle&)
     return new RenderVTTCue(this);
 }
 
-void VTTCueBox::trace(Visitor* visitor)
+DEFINE_TRACE(VTTCueBox)
 {
     visitor->trace(m_cue);
     HTMLDivElement::trace(visitor);
@@ -1126,7 +1126,7 @@ Document& VTTCue::document() const
     return m_cueBackgroundBox->document();
 }
 
-void VTTCue::trace(Visitor* visitor)
+DEFINE_TRACE(VTTCue)
 {
     visitor->trace(m_vttNodeTree);
     visitor->trace(m_cueBackgroundBox);