Blink JavaScript shared memory prototype.

Source/bindings/v8/SerializedScriptValue.cpp

Index: Source/bindings/v8/SerializedScriptValue.cpp
diff --git a/Source/bindings/v8/SerializedScriptValue.cpp b/Source/bindings/v8/SerializedScriptValue.cpp
index 7ba4d063bdfb5e93dbe21c6c30027b27f57fe2d4..2b6d3d92c16de11919a0bd97ac0998d30d97530d 100644
--- a/Source/bindings/v8/SerializedScriptValue.cpp
+++ b/Source/bindings/v8/SerializedScriptValue.cpp
@@ -2922,7 +2922,9 @@ PassOwnPtr<SerializedScriptValue::ArrayBufferContentsArray> SerializedScriptValu
             return nullptr;
         }
 
-        neuterArrayBufferInAllWorlds(arrayBuffers[i].get());
+        if (!arrayBuffers[i]->isShared()) {
+            neuterArrayBufferInAllWorlds(arrayBuffers[i].get());
+        }
     }
     return contents.release();
 }