mojo: Fix java generator

mojo/public/java/bindings/src/org/chromium/mojo/bindings/Callbacks.java

Index: mojo/public/java/bindings/src/org/chromium/mojo/bindings/Callbacks.java
diff --git a/mojo/public/java/bindings/src/org/chromium/mojo/bindings/Callbacks.java b/mojo/public/java/bindings/src/org/chromium/mojo/bindings/Callbacks.java
index 87b9abdcd7317f6ee92a177fe99ff41eed106241..c6b14c14944df9460f6630257a2734aa8d46cd06 100644
--- a/mojo/public/java/bindings/src/org/chromium/mojo/bindings/Callbacks.java
+++ b/mojo/public/java/bindings/src/org/chromium/mojo/bindings/Callbacks.java
@@ -13,107 +13,117 @@ package org.chromium.mojo.bindings;
 public interface Callbacks {
 
     /**
-      * A generic 1-argument callback.
-      *
-      * @param <T1> the type of argument 1.
-      */
+     * A generic callback.
+     */
+    interface Callback0 {
+        /**
+         * Call the callback.
+         */
+        public void call();
+    }
+
+    /**
+     * A generic 1-argument callback.
+     *
+     * @param <T1> the type of argument 1.
+     */
     interface Callback1<T1> {
         /**
-          * Call the callback.
-          */
+         * Call the callback.
+         */
         public void call(T1 arg1);
     }
 
     /**
-      * A generic 2-argument callback.
-      *
-      * @param <T1> the type of argument 1.
+     * A generic 2-argument callback.
+     *
+     * @param <T1> the type of argument 1.
       * @param <T2> the type of argument 2.
-      */
+     */
     interface Callback2<T1, T2> {
         /**
-          * Call the callback.
-          */
+         * Call the callback.
+         */
         public void call(T1 arg1, T2 arg2);
     }
 
     /**
-      * A generic 3-argument callback.
-      *
-      * @param <T1> the type of argument 1.
+     * A generic 3-argument callback.
+     *
+     * @param <T1> the type of argument 1.
       * @param <T2> the type of argument 2.
       * @param <T3> the type of argument 3.
-      */
+     */
     interface Callback3<T1, T2, T3> {
         /**
-          * Call the callback.
-          */
+         * Call the callback.
+         */
         public void call(T1 arg1, T2 arg2, T3 arg3);
     }
 
     /**
-      * A generic 4-argument callback.
-      *
-      * @param <T1> the type of argument 1.
+     * A generic 4-argument callback.
+     *
+     * @param <T1> the type of argument 1.
       * @param <T2> the type of argument 2.
       * @param <T3> the type of argument 3.
       * @param <T4> the type of argument 4.
-      */
+     */
     interface Callback4<T1, T2, T3, T4> {
         /**
-          * Call the callback.
-          */
+         * Call the callback.
+         */
         public void call(T1 arg1, T2 arg2, T3 arg3, T4 arg4);
     }
 
     /**
-      * A generic 5-argument callback.
-      *
-      * @param <T1> the type of argument 1.
+     * A generic 5-argument callback.
+     *
+     * @param <T1> the type of argument 1.
       * @param <T2> the type of argument 2.
       * @param <T3> the type of argument 3.
       * @param <T4> the type of argument 4.
       * @param <T5> the type of argument 5.
-      */
+     */
     interface Callback5<T1, T2, T3, T4, T5> {
         /**
-          * Call the callback.
-          */
+         * Call the callback.
+         */
         public void call(T1 arg1, T2 arg2, T3 arg3, T4 arg4, T5 arg5);
     }
 
     /**
-      * A generic 6-argument callback.
-      *
-      * @param <T1> the type of argument 1.
+     * A generic 6-argument callback.
+     *
+     * @param <T1> the type of argument 1.
       * @param <T2> the type of argument 2.
       * @param <T3> the type of argument 3.
       * @param <T4> the type of argument 4.
       * @param <T5> the type of argument 5.
       * @param <T6> the type of argument 6.
-      */
+     */
     interface Callback6<T1, T2, T3, T4, T5, T6> {
         /**
-          * Call the callback.
-          */
+         * Call the callback.
+         */
         public void call(T1 arg1, T2 arg2, T3 arg3, T4 arg4, T5 arg5, T6 arg6);
     }
 
     /**
-      * A generic 7-argument callback.
-      *
-      * @param <T1> the type of argument 1.
+     * A generic 7-argument callback.
+     *
+     * @param <T1> the type of argument 1.
       * @param <T2> the type of argument 2.
       * @param <T3> the type of argument 3.
       * @param <T4> the type of argument 4.
       * @param <T5> the type of argument 5.
       * @param <T6> the type of argument 6.
       * @param <T7> the type of argument 7.
-      */
+     */
     interface Callback7<T1, T2, T3, T4, T5, T6, T7> {
         /**
-          * Call the callback.
-          */
+         * Call the callback.
+         */
         public void call(T1 arg1, T2 arg2, T3 arg3, T4 arg4, T5 arg5, T6 arg6, T7 arg7);
     }