Expose transferable constructor to Int8List

runtime/vm/raw_object.h

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #ifndef VM_RAW_OBJECT_H_
 #define VM_RAW_OBJECT_H_
 
 #include "platform/assert.h"
 #include "vm/globals.h"
 #include "vm/token.h"
@@ skipping 1327 matching lines @@
   RAW_HEAP_OBJECT_IMPLEMENTATION(Float64Array);
 
   // Variable length data follows here.
   double data_[0];
 };
 
 
 template<typename T>
 class ExternalByteArrayData {
  public:
+  static const int kAlignment = 16;
+
   ExternalByteArrayData(T* data,
                         void* peer,
                         Dart_PeerFinalizer callback) :
       data_(data), peer_(peer), callback_(callback) {
   }
   ~ExternalByteArrayData() {
     if (callback_ != NULL) (*callback_)(peer_);
   }
 
   T* data() {
@@ skipping 277 matching lines @@
          kExternalUint64ArrayCid == kExternalInt8ArrayCid + 7 &&
          kExternalFloat32ArrayCid == kExternalInt8ArrayCid + 8 &&
          kExternalFloat64ArrayCid == kExternalInt8ArrayCid + 9 &&
          kStacktraceCid == kExternalInt8ArrayCid + 10);
   return (index >= kExternalInt8ArrayCid && index <= kExternalFloat64ArrayCid);
 }
 
 }  // namespace dart
 
 #endif  // VM_RAW_OBJECT_H_