Make EWordBreak an enum class.

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

Index: third_party/WebKit/Source/core/layout/ng/inline/ng_line_breaker.cc
diff --git a/third_party/WebKit/Source/core/layout/ng/inline/ng_line_breaker.cc b/third_party/WebKit/Source/core/layout/ng/inline/ng_line_breaker.cc
index 81aef02e4ac8ef8f9d4a7ba9a5a413fa908a1f39..ef44ef005f795955d0a7ba02f4a930578fdb4953 100644
--- a/third_party/WebKit/Source/core/layout/ng/inline/ng_line_breaker.cc
+++ b/third_party/WebKit/Source/core/layout/ng/inline/ng_line_breaker.cc
@@ -69,10 +69,10 @@ std::pair<unsigned, LayoutUnit> ShapeLineMock(
 
 LineBreakType GetLineBreakType(const ComputedStyle& style) {
   if (style.AutoWrap()) {
-    if (style.WordBreak() == kBreakAllWordBreak ||
-        style.WordBreak() == kBreakWordBreak)
+    if (style.WordBreak() == EWordBreak::kBreakAll ||
+        style.WordBreak() == EWordBreak::kBreakWord)
       return LineBreakType::kBreakAll;
-    if (style.WordBreak() == kKeepAllWordBreak)
+    if (style.WordBreak() == EWordBreak::kKeepAll)
       return LineBreakType::kKeepAll;
   }
   return LineBreakType::kNormal;