Minor refactorings and opening api for customized communication implementations

svn changeset:16928/svn branch:6.5

src/com/vaadin/terminal/gwt/client/ApplicationConnection.java

     public static final String ATTRIBUTE_ERROR = "error";
 
     // will hold the UIDL security key (for XSS protection) once received
-    private String uidl_security_key = "init";
+    private String uidlSecurityKey = "init";
 
     private final HashMap<String, String> resourcesMap = new HashMap<String, String>();
 
             final String extraParams, final boolean forceSync) {
         startRequest();
         // Security: double cookie submission pattern
-        final String rd = uidl_security_key + VAR_BURST_SEPARATOR + requestData;
+        final String rd = uidlSecurityKey + VAR_BURST_SEPARATOR + requestData;
         VConsole.log("Making UIDL Request with params: " + rd);
         String uri;
         if (configuration.usePortletURLs()) {
 
         // Get security key
         if (json.containsKey(UIDL_SECURITY_TOKEN_ID)) {
-            uidl_security_key = json.getString(UIDL_SECURITY_TOKEN_ID);
+            uidlSecurityKey = json.getString(UIDL_SECURITY_TOKEN_ID);
         }
 
         if (json.containsKey("resources")) {
         windowName = newName;
     }
 
+    protected String getWindowName() {
+        return windowName;
+    }
+
+    protected String getUidlSecurityKey() {
+        return uidlSecurityKey;
+    }
+
     /**
      * Use to notify that the given component's caption has changed; layouts may
      * have to be recalculated.