Rename ExceptionCode constants to use the names in the spec (2/3)

Source/core/page/PerformanceUserTiming.cpp

Index: Source/core/page/PerformanceUserTiming.cpp
diff --git a/Source/core/page/PerformanceUserTiming.cpp b/Source/core/page/PerformanceUserTiming.cpp
index 794eef359cff3e91bfaab665ce8228186ffd6a9d..c2e25876031a20e368e3e60ab5925b06439e0668 100644
--- a/Source/core/page/PerformanceUserTiming.cpp
+++ b/Source/core/page/PerformanceUserTiming.cpp
@@ -100,7 +100,7 @@ void UserTiming::mark(const String& markName, ExceptionCode& ec)
 {
     ec = 0;
     if (restrictedKeyMap().contains(markName)) {
-        ec = SYNTAX_ERR;
+        ec = SyntaxError;
         return;
     }
 
@@ -123,13 +123,13 @@ double UserTiming::findExistingMarkStartTime(const String& markName, ExceptionCo
     if (restrictedKeyMap().contains(markName)) {
         double value = static_cast<double>((m_performance->timing()->*(restrictedKeyMap().get(markName)))());
         if (!value) {
-            ec = INVALID_ACCESS_ERR;
+            ec = InvalidAccessError;
             return 0.0;
         }
         return value - m_performance->timing()->navigationStart();
     }
 
-    ec = SYNTAX_ERR;
+    ec = SyntaxError;
     return 0.0;
 }