Make platform/heap to use USING_FAST_MALLOC.

third_party/WebKit/Source/bindings/core/v8/V8Binding.h

 /*
 * Copyright (C) 2009 Google Inc. All rights reserved.
 * Copyright (C) 2012 Ericsson AB. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met:
 *
 *     * Redistributions of source code must retain the above copyright
 * notice, this list of conditions and the following disclaimer.
@@ skipping 1011 matching lines @@
 CORE_EXPORT void moveEventListenerToNewWrapper(v8::Isolate*, v8::Local<v8::Object>, EventListener* oldValue, v8::Local<v8::Value> newValue, int cacheIndex);
 
 // Result values for platform object 'deleter' methods,
 // http://www.w3.org/TR/WebIDL/#delete
 enum DeleteResult {
     DeleteSuccess,
     DeleteReject,
     DeleteUnknownProperty
 };
 
-class V8IsolateInterruptor : public BlinkGCInterruptor {
-    USING_FAST_MALLOC(V8IsolateInterruptor);
+class V8IsolateInterruptor final : public BlinkGCInterruptor {
 public:
     explicit V8IsolateInterruptor(v8::Isolate* isolate)
         : m_isolate(isolate)
     {
     }
 
     static void onInterruptCallback(v8::Isolate* isolate, void* data)
     {
         V8IsolateInterruptor* interruptor = reinterpret_cast<V8IsolateInterruptor*>(data);
         interruptor->onInterrupted();
@@ skipping 42 matching lines @@
 PassRefPtr<TraceEvent::ConvertableToTraceFormat> devToolsTraceEventData(v8::Isolate*, ExecutionContext*, v8::Local<v8::Function>);
 
 // Callback functions used by generated code.
 CORE_EXPORT void v8ConstructorAttributeGetter(v8::Local<v8::Name> propertyName, const v8::PropertyCallbackInfo<v8::Value>&);
 
 typedef void (*InstallTemplateFunction)(v8::Local<v8::FunctionTemplate>, v8::Isolate*);
 
 } // namespace blink
 
 #endif // V8Binding_h