Changed EWhiteSpace to an enum class and renamed its members to keywords

third_party/WebKit/Source/core/editing/iterators/TextIterator.cpp

Index: third_party/WebKit/Source/core/editing/iterators/TextIterator.cpp
diff --git a/third_party/WebKit/Source/core/editing/iterators/TextIterator.cpp b/third_party/WebKit/Source/core/editing/iterators/TextIterator.cpp
index b5d8296d4369f32e387dba80b788c6b6c19bd129..e41d636c3b389a8310cc416f33e2f6fc4a06417d 100644
--- a/third_party/WebKit/Source/core/editing/iterators/TextIterator.cpp
+++ b/third_party/WebKit/Source/core/editing/iterators/TextIterator.cpp
@@ -713,9 +713,9 @@ void TextIteratorAlgorithm<Strategy>::handleTextBox() {
         // This effectively translates newlines to spaces without copying the
         // text.
         if (str[runStart] == '\n') {
-          // We need to preserve new lines in case of PRE_LINE.
+          // We need to preserve new lines in case of PreLine.
           // See bug crbug.com/317365.
-          if (layoutObject->style()->whiteSpace() == PRE_LINE)
+          if (layoutObject->style()->whiteSpace() == EWhiteSpace::PreLine)
             spliceBuffer('\n', m_node, 0, runStart, runStart);
           else
             spliceBuffer(spaceCharacter, m_node, 0, runStart, runStart + 1);