Change default for install 32bit libs on 64bit Linux systems to NO.

build/install-build-deps.sh

 #!/bin/bash -e
 
 # Copyright (c) 2011 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.
 
 # Script to install everything needed to build chromium (well, ideally, anyway)
 # See http://code.google.com/p/chromium/wiki/LinuxBuildInstructions
 # and http://code.google.com/p/chromium/wiki/LinuxBuild64Bit
 
@@ skipping 322 matching lines @@
     echo "This is only needed to build a 32-bit Chrome on your 64-bit system."
     echo
     echo "While we only need to install a relatively small number of library"
     echo "files, we temporarily need to download a lot of large *.deb packages"
     echo "that contain these files. We will create new *.deb packages that"
     echo "include just the 32bit libraries. These files will then be found on"
     echo "your system in places like /lib32, /usr/lib32, /usr/lib/debug/lib32,"
     echo "/usr/lib/debug/usr/lib32. If you ever need to uninstall these files,"
     echo "look for packages named *-ia32.deb."
     echo "Do you want me to download all packages needed to build new 32bit"
-    echo -n "package files (Y/n) "
-    if yes_no 0; then
+    echo -n "package files (y/N) "
+    if yes_no 1; then
       do_inst_lib32=1
     fi
   fi
   if test "$do_inst_lib32" != "1"
   then
     echo "Exiting without installing any 32bit libraries."
     exit 0
   fi
 
   # Standard 32bit compatibility libraries
@@ skipping 146 matching lines @@
              sed -e 's/[.]so[.][0-9].*/.so/' |
              sort -u); do
     [ "x${i##*/}" = "xld-linux.so" ] && continue
     [ -r "$i" ] && continue
     j="$(ls "$i."* | sed -e 's/.*[.]so[.]\([^.]*\)$/\1/;t;d' |
          sort -n | tail -n 1)"
     [ -r "$i.$j" ] || continue
     sudo ln -s "${i##*/}.$j" "$i"
   done
 fi