Provide a convenience array buffer allocator

test/unittests/test-utils.cc

 // Copyright 2014 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "test/unittests/test-utils.h"
 
 #include "include/libplatform/libplatform.h"
 #include "src/base/platform/time.h"
 #include "src/debug/debug.h"
 #include "src/flags.h"
 #include "src/isolate.h"
 #include "src/v8.h"
 
 namespace v8 {
 
-class 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); }
-};
-
+// static
+v8::ArrayBuffer::Allocator* TestWithIsolate::array_buffer_allocator_ = nullptr;
 
 // static
-ArrayBufferAllocator* TestWithIsolate::array_buffer_allocator_ = NULL;
-
-// static
-Isolate* TestWithIsolate::isolate_ = NULL;
-
+Isolate* TestWithIsolate::isolate_ = nullptr;
 
 TestWithIsolate::TestWithIsolate()
     : isolate_scope_(isolate()), handle_scope_(isolate()) {}
 
 
 TestWithIsolate::~TestWithIsolate() {}
 
 
 // static
 void TestWithIsolate::SetUpTestCase() {
   Test::SetUpTestCase();
   EXPECT_EQ(NULL, isolate_);
   v8::Isolate::CreateParams create_params;
-  array_buffer_allocator_ = new ArrayBufferAllocator;
+  array_buffer_allocator_ = v8::ArrayBuffer::Allocator::NewDefaultAllocator();
   create_params.array_buffer_allocator = array_buffer_allocator_;
   isolate_ = v8::Isolate::New(create_params);
   EXPECT_TRUE(isolate_ != NULL);
 }
 
 
 // static
 void TestWithIsolate::TearDownTestCase() {
   ASSERT_TRUE(isolate_ != NULL);
   v8::Platform* platform = internal::V8::GetCurrentPlatform();
@@ skipping 42 matching lines @@
 
 base::RandomNumberGenerator* TestWithIsolate::random_number_generator() const {
   return isolate()->random_number_generator();
 }
 
 
 TestWithZone::~TestWithZone() {}
 
 }  // namespace internal
 }  // namespace v8