[WIP]Implement Blink side changes for navigator.language(s) support for workers.

Source/core/workers/WorkerNavigator.cpp

Index: Source/core/workers/WorkerNavigator.cpp
diff --git a/Source/core/workers/WorkerNavigator.cpp b/Source/core/workers/WorkerNavigator.cpp
index 148a9cd50171fab9be34a33fc0255a6185698ab6..97bcb193a8c986b74b33841bebacfa1f99b96110 100644
--- a/Source/core/workers/WorkerNavigator.cpp
+++ b/Source/core/workers/WorkerNavigator.cpp
@@ -51,4 +51,22 @@ void WorkerNavigator::trace(Visitor* visitor)
 #endif
 }
 
+void WorkerNavigator::setUserPreferredLanguagesForWorkers(const Vector<String>& languages)
+{
+    m_userPreferredLanguages = languages;
+}
+
+AtomicString WorkerNavigator::language()
+{
+    if (!m_userPreferredLanguages.isEmpty())
+        return AtomicString(m_userPreferredLanguages.at(0));
+
+    return emptyAtom;
+}
+
+Vector<String> WorkerNavigator::languages()
+{
+    return m_userPreferredLanguages;
+}
+
 } // namespace blink