Move runtime helper for JSArrayBuffer onto objects.

src/objects.h

 // Copyright 2012 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.
 
 #ifndef V8_OBJECTS_H_
 #define V8_OBJECTS_H_
 
 #include <iosfwd>
 
 #include "src/allocation.h"
@@ skipping 9501 matching lines @@
   inline bool was_neutered();
   inline void set_was_neutered(bool value);
 
   inline bool is_shared();
   inline void set_is_shared(bool value);
 
   DECLARE_CAST(JSArrayBuffer)
 
   void Neuter();
 
+  static void Setup(Handle<JSArrayBuffer> array_buffer, Isolate* isolate,
+                    bool is_external, void* data, size_t allocated_length,
+                    SharedFlag shared = SharedFlag::kNotShared);
+
+  static bool SetupAllocatingData(Handle<JSArrayBuffer> array_buffer,
+                                  Isolate* isolate, size_t allocated_length,
+                                  bool initialize = true,
+                                  SharedFlag shared = SharedFlag::kNotShared);
+
   // Dispatched behavior.
   DECLARE_PRINTER(JSArrayBuffer)
   DECLARE_VERIFIER(JSArrayBuffer)
 
   static const int kBackingStoreOffset = JSObject::kHeaderSize;
   static const int kByteLengthOffset = kBackingStoreOffset + kPointerSize;
   static const int kBitFieldSlot = kByteLengthOffset + kPointerSize;
 #if V8_TARGET_LITTLE_ENDIAN || !V8_HOST_ARCH_64_BIT
   static const int kBitFieldOffset = kBitFieldSlot;
 #else
@@ skipping 794 matching lines @@
     } else {
       value &= ~(1 << bit_position);
     }
     return value;
   }
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_OBJECTS_H_