Provide a convenience array buffer allocator

test/fuzzer/fuzzer-support.cc

Index: test/fuzzer/fuzzer-support.cc
diff --git a/test/fuzzer/fuzzer-support.cc b/test/fuzzer/fuzzer-support.cc
index ea9fb09afdb7b497ed0ed5680a77c1c9d528b91c..936970ee6a75de81ceccaa01cc733533471ed623 100644
--- a/test/fuzzer/fuzzer-support.cc
+++ b/test/fuzzer/fuzzer-support.cc
@@ -27,16 +27,6 @@ void DeleteFuzzerSupport() {
 
 }  // namespace
 
-class FuzzerSupport::ArrayBufferAllocator : public v8::ArrayBuffer::Allocator {
- public:
-  virtual void* Allocate(size_t length) {
-    void* data = AllocateUninitialized(length);
-    return data == NULL ? data : memset(data, 0, length);
-  }
-  virtual void* AllocateUninitialized(size_t length) { return malloc(length); }
-  virtual void Free(void* data, size_t) { free(data); }
-};
-
 FuzzerSupport::FuzzerSupport(int* argc, char*** argv) {
   v8::internal::FLAG_expose_gc = true;
   v8::V8::SetFlagsFromCommandLine(argc, *argv, true);
@@ -46,7 +36,7 @@ FuzzerSupport::FuzzerSupport(int* argc, char*** argv) {
   v8::V8::InitializePlatform(platform_);
   v8::V8::Initialize();
 
-  allocator_ = new ArrayBufferAllocator;
+  allocator_ = v8::ArrayBuffer::Allocator::NewDefaultAllocator();
   v8::Isolate::CreateParams create_params;
   create_params.array_buffer_allocator = allocator_;
   isolate_ = v8::Isolate::New(create_params);