Bump to v4.3.0.

_cloneBuffer.js

@@ -1,18 +1,21 @@
-define(['./_Uint8Array'], function(Uint8Array) {
+define([], function() {
 
   /**
-   * Creates a clone of `buffer`.
+   * Creates a clone of  `buffer`.
    *
    * @private
-   * @param {ArrayBuffer} buffer The array buffer to clone.
-   * @returns {ArrayBuffer} Returns the cloned array buffer.
+   * @param {Buffer} buffer The buffer to clone.
+   * @param {boolean} [isDeep] Specify a deep clone.
+   * @returns {Buffer} Returns the cloned buffer.
    */
-  function cloneBuffer(buffer) {
+  function cloneBuffer(buffer, isDeep) {
+    if (isDeep) {
+      return buffer.slice();
+    }
     var Ctor = buffer.constructor,
-        result = new Ctor(buffer.byteLength),
-        view = new Uint8Array(result);
+        result = new Ctor(buffer.length);
 
-    view.set(new Uint8Array(buffer));
+    buffer.copy(result);
     return result;
   }