Add size_t length argument to v8::ArrayBuffer::Allocator::Free.

src/api.cc

Index: src/api.cc
diff --git a/src/api.cc b/src/api.cc
index 1ae81b13252e3a1bdf50cb53b66433dd49b053f3..d442126ebbb3c23babfa8cec218edf2fd630480c 100644
--- a/src/api.cc
+++ b/src/api.cc
@@ -3071,6 +3071,12 @@ void v8::ArrayBuffer::CheckCast(Value* that) {
 }
 
 
+void v8::ArrayBuffer::Allocator::Free(void* data) {
+  API_Fatal("v8::ArrayBuffer::Allocator::Free",
+            "Override Allocator::Free(void*, size_t)");
+}
+
+
 void v8::ArrayBufferView::CheckCast(Value* that) {
   i::Handle<i::Object> obj = Utils::OpenHandle(that);
   ApiCheck(obj->IsJSArrayBufferView(),