Revert of Remove javaEnabled setting.

Source/modules/plugins/NavigatorPlugins.cpp

Index: Source/modules/plugins/NavigatorPlugins.cpp
diff --git a/Source/modules/plugins/NavigatorPlugins.cpp b/Source/modules/plugins/NavigatorPlugins.cpp
index c86cd06b22d874d121bebd275d05861b495a8cdd..bf48d9cfd8542de4495cae8a3512621bcd0949a7 100644
--- a/Source/modules/plugins/NavigatorPlugins.cpp
+++ b/Source/modules/plugins/NavigatorPlugins.cpp
@@ -60,7 +60,7 @@
 // static
 bool NavigatorPlugins::javaEnabled(Navigator& navigator)
 {
-    return false;
+    return NavigatorPlugins::from(navigator).javaEnabled(navigator.frame());
 }
 
 DOMPluginArray* NavigatorPlugins::plugins(LocalFrame* frame) const
@@ -77,6 +77,14 @@
     return m_mimeTypes.get();
 }
 
+bool NavigatorPlugins::javaEnabled(LocalFrame* frame) const
+{
+    if (!frame || !frame->settings())
+        return false;
+
+    return frame->settings()->javaEnabled();
+}
+
 DEFINE_TRACE(NavigatorPlugins)
 {
     visitor->trace(m_plugins);