Throw exceptions for errors in v8::ValueSerializer.

include/v8.h

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 /** \mainpage V8 API Reference Guide
  *
  * V8 is Google's open source JavaScript engine.
  *
  * This set of documents provides reference material generated from the
  * V8 header file, include/v8.h.
@@ skipping 1653 matching lines @@
 /**
  * Value serialization compatible with the HTML structured clone algorithm.
  * The format is backward-compatible (i.e. safe to store to disk).
  *
  * WARNING: This API is under development, and changes (including incompatible
  * changes to the API or wire format) may occur without notice until this
  * warning is removed.
  */
 class V8_EXPORT ValueSerializer {
  public:
+  class V8_EXPORT Delegate {
+   public:
+    virtual ~Delegate() {}
+
+    /*
+     * Handles the case where a DataCloneError would be thrown in the structured
+     * clone spec. Other V8 embedders may throw some other appropriate exception
+     * type.
+     */
+    virtual void ThrowDataCloneError(Local<String> message) = 0;
+  };
+
   explicit ValueSerializer(Isolate* isolate);
+  ValueSerializer(Isolate* isolate, Delegate* delegate);
   ~ValueSerializer();
 
   /*
    * Writes out a header, which includes the format version.
    */
   void WriteHeader();
 
   /*
    * Serializes a JavaScript value into the buffer.
    */
@@ skipping 7683 matching lines @@
  */
 
 
 }  // namespace v8
 
 
 #undef TYPE_CHECK
 
 
 #endif  // INCLUDE_V8_H_