Install lib64stdc++ in install-chroot.sh.

build/install-chroot.sh

 #!/bin/bash -e
 
 # Copyright (c) 2012 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 installs Debian-derived distributions in a chroot environment.
 # It can for example be used to have an accurate 32bit build and test
 # environment when otherwise working on a 64bit machine.
 # N. B. it is unlikely that this script will ever work on anything other than a
@@ skipping 641 matching lines @@
 # the host, otherwise there might be incompatibilities in build settings or
 # runtime dependencies. The user can force it with the '-c' flag.
 host_distro=$(grep -s DISTRIB_CODENAME /etc/lsb-release | \
   cut -d "=" -f 2)
 if [ "${copy_64}" = "y" -o \
     "${host_distro}" = "${distname}" -a "${arch}" = 32bit ] && \
     file /bin/bash 2>/dev/null | grep -q x86-64; then
   readlinepkg=$(sudo "/usr/local/bin/${target%bit}" sh -c \
     'apt-cache search "lib64readline.\$" | sort | tail -n 1 | cut -d " " -f 1')
   sudo "/usr/local/bin/${target%bit}" apt-get -y install                       \
-    lib64expat1 lib64ncurses5 ${readlinepkg} lib64z1
+    lib64expat1 lib64ncurses5 ${readlinepkg} lib64z1 lib64stdc++6
   dep=
   for i in binutils gdb; do
     [ -d /usr/share/doc/"$i" ] || dep="$dep $i"
   done
   [ -n "$dep" ] && sudo apt-get -y install $dep
   sudo mkdir -p "/var/lib/chroot/${target}/usr/local/lib/amd64"
   for i in libbfd libpython; do
     lib="$({ ldd /usr/bin/ld; ldd /usr/bin/gdb; } |
            grep -s "$i" | awk '{ print $3 }')"
     if [ -n "$lib" -a -r "$lib" ]; then
@@ skipping 176 matching lines @@
 
 For Chrome, this probably means you want to make your "out" directory a
 symbolic link that points somewhere inside of "${HOME}/chroot".
 
 You still need to run "gclient runhooks" whenever you switch from building
 outside of the chroot to inside of the chroot. But you will find that you
 don't have to repeatedly erase and then completely rebuild all your object
 and binary files.
 
 EOF