Changed EPosition to an enum class and renamed its members

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

Index: third_party/WebKit/Source/core/html/track/vtt/VTTCue.cpp
diff --git a/third_party/WebKit/Source/core/html/track/vtt/VTTCue.cpp b/third_party/WebKit/Source/core/html/track/vtt/VTTCue.cpp
index 7fc6070c58489b3c68b1de7a16bb8625dd2c0aaa..3869121922cc0c0786fb29aab9e7451bd2f712b2 100644
--- a/third_party/WebKit/Source/core/html/track/vtt/VTTCue.cpp
+++ b/third_party/WebKit/Source/core/html/track/vtt/VTTCue.cpp
@@ -223,7 +223,7 @@ LayoutObject* VTTCueBox::createLayoutObject(const ComputedStyle& style) {
   // longer necessary, since cues having the region parameter set do not have
   // any positioning parameters. Also, in this case, the regions themselves
   // have positioning information.
-  if (style.position() == RelativePosition)
+  if (style.position() == EPosition::kRelative)
     return HTMLDivElement::createLayoutObject(style);
 
   return new LayoutVTTCue(this, m_snapToLinesPosition);