Refactoring Iterator used on SVGTests.

Source/core/svg/SVGTests.cpp

Index: Source/core/svg/SVGTests.cpp
diff --git a/Source/core/svg/SVGTests.cpp b/Source/core/svg/SVGTests.cpp
index 9953105561b60f7c48d4351e361bc99052f96854..7dc26ddef62706a242efa16597ec4b46f46e1730 100644
--- a/Source/core/svg/SVGTests.cpp
+++ b/Source/core/svg/SVGTests.cpp
@@ -63,10 +63,8 @@ bool SVGTests::isValid(Document& document) const
         bool matchFound = false;
 
         const Vector<String>& systemLanguage = m_systemLanguage->value()->values();
-        Vector<String>::const_iterator it = systemLanguage.begin();
-        Vector<String>::const_iterator itEnd = systemLanguage.end();
-        for (; it != itEnd; ++it) {
-            if (*it == defaultLanguage().string().substring(0, 2)) {
+        for (const auto& value : systemLanguage) {
+            if (value == defaultLanguage().string().substring(0, 2)) {
                 matchFound = true;
                 break;
             }