Add wrapper for official .SlackBuild of Google Chrome

xap/update-google_chrome.sh

@@ -0,0 +1,20 @@
+#!/bin/sh
+
+BUILD_DIR=${BUILD_DIR:=/home/installs/slackware64-current/extra/google-chrome}
+
+ARCH=${ARCH:=$(uname -m)}
+case $ARCH in
+    "i?86")
+        ARCH=i386
+        ;;
+    "x86_64")
+        ARCH=amd64
+        ;;
+esac
+CHANNEL=${CHANNEL:=stable}
+
+cd $BUILD_DIR
+[ -e google-chrome-${CHANNEL}_current_$ARCH.deb ] && rm google-chrome-${CHANNEL}_current_$ARCH.deb
+wget -c http://dl.google.com/linux/direct/google-chrome-${CHANNEL}_current_$ARCH.deb
+RELEASE=$CHANNEL ./google-chrome.SlackBuild
+[ " x$1" -eq "x--install" ] && upgradepkg --install-new $(ls -ut /tmp/google-chrome-*-$(uname -m)-*.txz | head -n1)