Graceful handling of new versions of IndexedDB serialized data.

third_party/WebKit/Source/bindings/modules/v8/V8BindingForModules.h

 // Copyright (c) 2015 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.
 
 #ifndef V8BindingForModules_h
 #define V8BindingForModules_h
 
 #include "bindings/core/v8/V8Binding.h"
 #include "modules/ModulesExport.h"
 #include "modules/webdatabase/sqlite/SQLValue.h"
 
 namespace blink {
 
 class IDBKey;
 class IDBKeyPath;
 class IDBKeyRange;
 class IDBValue;
 class SerializedScriptValue;
 class WebBlobInfo;
 
 // Exposed for unit testing:
+MODULES_EXPORT v8::Local<v8::Value> deserializeIDBValue(
+    v8::Isolate*,
+    v8::Local<v8::Object> creationContext,
+    const IDBValue*);
 MODULES_EXPORT bool injectV8KeyIntoV8Value(v8::Isolate*,
                                            v8::Local<v8::Value> key,
                                            v8::Local<v8::Value>,
                                            const IDBKeyPath&);
 
 // For use by Source/modules/indexeddb (and unit testing):
 MODULES_EXPORT bool canInjectIDBKeyIntoScriptValue(v8::Isolate*,
                                                    const ScriptValue&,
                                                    const IDBKeyPath&);
 ScriptValue deserializeScriptValue(ScriptState*,
@@ skipping 25 matching lines @@
 template <>
 struct NativeValueTraits<IDBKeyRange*> {
   static IDBKeyRange* nativeValue(v8::Isolate*,
                                   v8::Local<v8::Value>,
                                   ExceptionState&);
 };
 
 }  // namespace blink
 
 #endif  // V8BindingForModules_h