[SharedArrayBuffer] Prevent SharedArrayBuffer being used in Web APIs

third_party/WebKit/Source/bindings/core/v8/ToV8.h

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef ToV8_h
 #define ToV8_h
 
 // ToV8() provides C++ -> V8 conversion. Note that ToV8() can return an empty
 // handle. Call sites must check IsEmpty() before using return value.
 
 #include <utility>
 
 #include "bindings/core/v8/DOMDataStore.h"
 #include "bindings/core/v8/IDLDictionaryBase.h"
 #include "bindings/core/v8/ScriptState.h"
 #include "bindings/core/v8/ScriptValue.h"
 #include "bindings/core/v8/ScriptWrappable.h"
 #include "bindings/core/v8/V8Binding.h"
 #include "core/CoreExport.h"
+#include "core/dom/NotShared.h"
 #include "platform/heap/Handle.h"
 #include "platform/wtf/Forward.h"
 #include "v8/include/v8.h"
 
 namespace blink {
 
 class DOMWindow;
 class Dictionary;
 class EventTarget;
 
@@ skipping 238 matching lines @@
     if (v8_value.IsEmpty())
       v8_value = v8::Undefined(isolate);
     if (!V8CallBoolean(object->CreateDataProperty(
             isolate->GetCurrentContext(), V8String(isolate, value[i].first),
             v8_value)))
       return v8::Local<v8::Value>();
   }
   return object;
 }
 
+template <typename T>
+inline v8::Local<v8::Value> ToV8(NotShared<T> value,
+                                 v8::Local<v8::Object> creation_context,
+                                 v8::Isolate* isolate) {
+  return ToV8(value.View(), creation_context, isolate);
+}
+
 template <typename Sequence>
 inline v8::Local<v8::Value> ToV8SequenceInternal(
     const Sequence& sequence,
     v8::Local<v8::Object> creation_context,
     v8::Isolate* isolate) {
   v8::Local<v8::Array> array;
   {
     v8::Context::Scope context_scope(creation_context->CreationContext());
     array = v8::Array::New(isolate, sequence.size());
   }
@@ skipping 35 matching lines @@
 // Cannot define in ScriptValue because of the circular dependency between toV8
 // and ScriptValue
 template <typename T>
 inline ScriptValue ScriptValue::From(ScriptState* script_state, T&& value) {
   return ScriptValue(script_state, ToV8(std::forward<T>(value), script_state));
 }
 
 }  // namespace blink
 
 #endif  // ToV8_h