Support variable changing in SDK interface and v8 native

plugins/org.chromium.sdk/src/org/chromium/sdk/JsVariable.java

 // Copyright (c) 2009 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 package org.chromium.sdk;
 
 /**
  * An object that represents a variable in a browser JavaScript VM call frame.
  */
 public interface JsVariable {
 
   /**
-   * A callback to use while setting a variable value.
-   */
-  interface SetValueCallback {
-    void success();
-
-    void failure(String errorMessage);
-  }
-
-  /**
    * @return whether it is possible to read this variable
    */
   boolean isReadable();
 
   /**
    * Returns the value of this variable.
    *
    * @return a [probably compound] JsValue corresponding to this variable.
    *         {@code null} if there was an error reading the value data
    *         or the property has accessor descriptor
@@ skipping 15 matching lines @@
   /**
    * @return whether it is possible to modify this variable
    */
   boolean isMutable();
 
   /**
    * Sets a new value for this variable.
    *
    * @param newValue to set
    * @param callback to report the operation result to
+   * @param syncCallback to report the end of any processing
    * @see #isMutable()
    * @throws UnsupportedOperationException if this variable is not mutable
    */
-  void setValue(String newValue, SetValueCallback callback)
+  RelayOk setValue(JsValue newValue, SetValueCallback callback, SyncCallback syncCallback)
       throws UnsupportedOperationException;
 
   /**
+   * A callback to use while setting a variable value.
+   */
+  interface SetValueCallback {
+    /**
+     * Variable is successfully updated. New value is available in {@link JsVariable#getValue()}.
+     */
+    void success();
+
+    /**
+     * Variable hasn't been updated because exception was thrown. Most probably this exception was
+     * thrown from setter function.
+     */
+    void exceptionThrown(JsValue exception);
+
+    /**
+     * Variable hasn't been updated for unknown reason.
+     */
+    void failure(Exception cause);
+  }
+
+  /**
    * Returns object property data if variable is an object property and its descriptor
    * is available.
    */
   JsObjectProperty asObjectProperty();
 }