Pass ArrayBuffer::Allocator via Isolate::CreateParams

src/extensions/free-buffer-extension.cc

Index: src/extensions/free-buffer-extension.cc
diff --git a/src/extensions/free-buffer-extension.cc b/src/extensions/free-buffer-extension.cc
index e8c7732b66f08f8fb8e3796477fc3e02e03ac9c3..c880d75d0b32733a84c4b031c07bed876357621a 100644
--- a/src/extensions/free-buffer-extension.cc
+++ b/src/extensions/free-buffer-extension.cc
@@ -22,7 +22,9 @@ void FreeBufferExtension::FreeBuffer(
     const v8::FunctionCallbackInfo<v8::Value>& args) {
   v8::Handle<v8::ArrayBuffer> arrayBuffer = args[0].As<v8::ArrayBuffer>();
   v8::ArrayBuffer::Contents contents = arrayBuffer->Externalize();
-  V8::ArrayBufferAllocator()->Free(contents.Data(), contents.ByteLength());
+  Isolate* isolate = reinterpret_cast<Isolate*>(args.GetIsolate());
+  isolate->array_buffer_allocator()->Free(contents.Data(),
+                                          contents.ByteLength());
 }
 
 } }  // namespace v8::internal