Make EBorderStyle an enum class.

third_party/WebKit/Source/core/layout/LayoutThemeTest.cpp

Index: third_party/WebKit/Source/core/layout/LayoutThemeTest.cpp
diff --git a/third_party/WebKit/Source/core/layout/LayoutThemeTest.cpp b/third_party/WebKit/Source/core/layout/LayoutThemeTest.cpp
index a1488bebbd6ebdc290c1f057abc75cad415efc85..eb96b0c30cdf987fd61b808832de6de6012d45b9 100644
--- a/third_party/WebKit/Source/core/layout/LayoutThemeTest.cpp
+++ b/third_party/WebKit/Source/core/layout/LayoutThemeTest.cpp
@@ -59,7 +59,7 @@ TEST_F(LayoutThemeTest, ChangeFocusRingColor) {
   Color custom_color = MakeRGB(123, 145, 167);
 
   // Checking unfocused style.
-  EXPECT_EQ(kBorderStyleNone, OutlineStyle(span));
+  EXPECT_EQ(EBorderStyle::kNone, OutlineStyle(span));
   EXPECT_NE(custom_color, OutlineColor(span));
 
   // Do focus.
@@ -69,7 +69,7 @@ TEST_F(LayoutThemeTest, ChangeFocusRingColor) {
   GetDocument().View()->UpdateAllLifecyclePhases();
 
   // Checking focused style.
-  EXPECT_NE(kBorderStyleNone, OutlineStyle(span));
+  EXPECT_NE(EBorderStyle::kNone, OutlineStyle(span));
   EXPECT_NE(custom_color, OutlineColor(span));
 
   // Change focus ring color.
@@ -78,7 +78,7 @@ TEST_F(LayoutThemeTest, ChangeFocusRingColor) {
   GetDocument().View()->UpdateAllLifecyclePhases();
 
   // Check that the focus ring color is updated.
-  EXPECT_NE(kBorderStyleNone, OutlineStyle(span));
+  EXPECT_NE(EBorderStyle::kNone, OutlineStyle(span));
   EXPECT_EQ(custom_color, OutlineColor(span));
 }