Bump to v4.3.0.

_cloneArrayBuffer.js

@@ -0,0 +1,19 @@
+var Uint8Array = require('./_Uint8Array');
+
+/**
+ * Creates a clone of `arrayBuffer`.
+ *
+ * @private
+ * @param {ArrayBuffer} arrayBuffer The array buffer to clone.
+ * @returns {ArrayBuffer} Returns the cloned array buffer.
+ */
+function cloneArrayBuffer(arrayBuffer) {
+  var Ctor = arrayBuffer.constructor,
+      result = new Ctor(arrayBuffer.byteLength),
+      view = new Uint8Array(result);
+
+  view.set(new Uint8Array(arrayBuffer));
+  return result;
+}
+
+module.exports = cloneArrayBuffer;