Expose delegate constructor. Review by: jat@google.com git-svn-id: https://google-web-toolkit.googlecode.com/svn/trunk@9991 8db76d5a-ed1c-0410-87a9-c151d255dfc7

diff --git a/user/src/com/google/gwt/user/server/rpc/AbstractXsrfProtectedServiceServlet.java b/user/src/com/google/gwt/user/server/rpc/AbstractXsrfProtectedServiceServlet.java
index b925019..ad716d8 100644
--- a/user/src/com/google/gwt/user/server/rpc/AbstractXsrfProtectedServiceServlet.java
+++ b/user/src/com/google/gwt/user/server/rpc/AbstractXsrfProtectedServiceServlet.java

@@ -42,6 +42,24 @@
 public abstract class AbstractXsrfProtectedServiceServlet extends
     RemoteServiceServlet {
 
+  /**
+   * The default constructor used by service implementations that
+   * extend this class.  The servlet will delegate AJAX requests to
+   * the appropriate method in the subclass.
+   */
+  public AbstractXsrfProtectedServiceServlet() {
+    super();
+  }
+
+  /**
+   * The wrapping constructor used by service implementations that are
+   * separate from this class.  The servlet will delegate AJAX
+   * requests to the appropriate method in the given object.
+   */
+  public AbstractXsrfProtectedServiceServlet(Object delegate) {
+    super(delegate);
+  }
+
   @Override
   protected void onAfterRequestDeserialized(RPCRequest rpcRequest) {
     if (shouldValidateXsrfToken(rpcRequest.getMethod())) {

diff --git a/user/src/com/google/gwt/user/server/rpc/XsrfProtectedServiceServlet.java b/user/src/com/google/gwt/user/server/rpc/XsrfProtectedServiceServlet.java
index 0986340..5a6c062 100644
--- a/user/src/com/google/gwt/user/server/rpc/XsrfProtectedServiceServlet.java
+++ b/user/src/com/google/gwt/user/server/rpc/XsrfProtectedServiceServlet.java

@@ -64,6 +64,16 @@
     this.sessionCookieName = sessionCookieName;
   }
 
+  public XsrfProtectedServiceServlet(Object delegate) {
+    this(delegate, null);
+  }
+
+  public XsrfProtectedServiceServlet(Object delegate,
+      String sessionCookieName) {
+    super(delegate);
+    this.sessionCookieName = sessionCookieName;
+  }
+
   @Override
   public void init() throws ServletException {
     super.init();

diff --git a/user/src/com/google/gwt/user/server/rpc/XsrfTokenServiceServlet.java b/user/src/com/google/gwt/user/server/rpc/XsrfTokenServiceServlet.java
index dc631ca..fa5343d 100644
--- a/user/src/com/google/gwt/user/server/rpc/XsrfTokenServiceServlet.java
+++ b/user/src/com/google/gwt/user/server/rpc/XsrfTokenServiceServlet.java

@@ -94,7 +94,7 @@
  *   public void onSuccess(XsrfToken result) {
  *     MyRpcServiceAsync rpc = (MyRpcServiceAsync)GWT.create(MyRpcService.class);
  *     ((HasRpcToken) rpc).setRpcToken(result);
- *     // make XSRF protection RPC calls using
+ *     // make XSRF protected RPC call
  *     rpc.doStuff(new AsyncCallback&lt;Void&gt;() {
  *       // ...
  *     });