Changed TextDirection 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 83b18fb7f37e7de0f774225c01335d8f662a72aa..4fabe1f0f43acd411006b7eb965457374f1d5785 100644
--- a/third_party/WebKit/Source/core/html/track/vtt/VTTCue.cpp
+++ b/third_party/WebKit/Source/core/html/track/vtt/VTTCue.cpp
@@ -546,7 +546,7 @@ static TextDirection determineDirectionality(const String& value,
                                              bool& hasStrongDirectionality) {
   TextRun run(value);
   BidiResolver<VTTTextRunIterator, BidiCharacterRun> bidiResolver;
-  bidiResolver.setStatus(BidiStatus(LTR, false));
+  bidiResolver.setStatus(BidiStatus(TextDirection::Ltr, false));
   bidiResolver.setPositionIgnoringNestedIsolates(VTTTextRunIterator(&run, 0));
   return bidiResolver.determineDirectionality(&hasStrongDirectionality);
 }
@@ -558,7 +558,7 @@ static CSSValueID determineTextDirection(DocumentFragment* vttRoot) {
   // concatenation of the values of each WebVTT Text Object in nodes, in a
   // pre-order, depth-first traversal, excluding WebVTT Ruby Text Objects and
   // their descendants.
-  TextDirection textDirection = LTR;
+  TextDirection textDirection = TextDirection::Ltr;
   Node* node = NodeTraversal::next(*vttRoot);
   while (node) {
     DCHECK(node->isDescendantOf(vttRoot));