Added authorized install with a script to do the copy.

chrome/installer/mac/app/copy_to_disk.sh

Index: chrome/installer/mac/app/copy_to_disk.sh
diff --git a/chrome/installer/mac/app/copy_to_disk.sh b/chrome/installer/mac/app/copy_to_disk.sh
new file mode 100755
index 0000000000000000000000000000000000000000..8b0c107f7076549af7cb8e122a4e04bb20e2ed20
--- /dev/null
+++ b/chrome/installer/mac/app/copy_to_disk.sh
@@ -0,0 +1,35 @@
+#!/bin/sh -p
+
+# Copyright 2016 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.
+
+# This script will be called by the installer application to copy Google
+# Chrome.app into the proper /Applications folder. This script may run as root.
+#
+# When running as root, this script will be invoked with the real user ID set
+# to the user's ID, but the effective user ID set to 0 (root).  bash -p is
+# used on the first line to prevent bash from setting the effective user ID to
+# the real user ID (dropping root privileges).
+
+set -euo pipefail

[Anna Zeng, 2016/08/23 19:36:12]

It'd be helpful to include what the flags mean in the documentation.

[ivanhernandez, 2016/08/24 18:23:17]

nah.

[ivanhernandez, 2016/08/24 18:28:26]

Whoops forgot to change this joke reply to 'Done.' I did add comments to explain
the need for the flags :).

+
+# Wait's for the main app to pass the path to the app bundle inside the mounted

[Elly Fong-Jones, 2016/08/24 16:39:22]

Wait's -> Waits

[ivanhernandez, 2016/08/24 18:23:17]

Done.

+# disk image.
+read -r SRC
+
+DEST=${1}

[Elly Fong-Jones, 2016/08/24 16:39:22]

quotes here

[ivanhernandez, 2016/08/24 18:23:17]

Done.

+APPBUNDLENAME=$(basename "${SRC}")
+FULL_DEST="${DEST}"/"${APPBUNDLENAME}"
+
+# Starts the copy
+rsync -lrptq "${SRC}" "${DEST}"

[Anna Zeng, 2016/08/23 19:36:12]

Ditto!

[ivanhernandez, 2016/08/24 18:23:17]

Done.

+
+# If this script is run as root, change ownership to root and set elevated
+# permissions.
+if [ "${EUID}" -eq 0 ] ; then
+  chown -Rh root:admin "${FULL_DEST}"
+  chmod -R a+rX,ug+w,o-w  "${FULL_DEST}"
+fi
+
+exit 0