Allow linux installer to be build without chrome branding

chrome/installer/linux/debian/build.sh

 #!/bin/bash
 #
 # 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.
 
 # TODO(mmoss) This currently only works with official builds, since non-official
 # builds don't add the "${BUILDDIR}/installer/" files needed for packaging.
 
 set -e
@@ skipping 264 matching lines @@
 echo "$DPKG_SHLIB_DEPS" | sed 's/, /\n/g' | \
   grep -v '^libc6 (>= 2.3.6-6~)$' | LANG=C sort > actual
 
 # Compare the expected dependency list to the generate list.
 BAD_DIFF=0
 diff -u "$SCRIPTDIR/expected_deps_$TARGETARCH" actual || BAD_DIFF=1
 if [ $BAD_DIFF -ne 0 ] && [ -z "${IGNORE_DEPS_CHANGES:-}" ]; then
   echo
   echo "ERROR: Shared library dependencies changed!"
   echo "If this is intentional, please update:"
-  echo "chrome/installer/linux/debian/expected_deps_ia32"
-  echo "chrome/installer/linux/debian/expected_deps_x64"
+  echo "chrome/installer/linux/debian/expected_deps_$TARGETARCH"
   echo
   exit $BAD_DIFF
 fi
 rm -rf "$DUMMY_STAGING_DIR"
 
 # Additional dependencies not in the dpkg-shlibdeps output.
 # ca-certificates: Make sure users have SSL certificates.
 # fonts-liberation: Make sure users have compatible fonts for viewing PDFs.
 # libappindicator1: Make systray icons work in Unity.
 # libnss3: Pull a more recent version of NSS than required by runtime linking,
@@ skipping 38 matching lines @@
 # Only use the default REPOCONFIG if it's unset (e.g. verify_channel might have
 # set it to an empty string)
 REPOCONFIG="${REPOCONFIG-deb [arch=${ARCHITECTURE}] http://${BASEREPOCONFIG}}"
 # Allowed configs include optional HTTPS support and explicit multiarch
 # platforms.
 REPOCONFIGREGEX="deb (\\\\[arch=[^]]*\\\\b${ARCHITECTURE}\\\\b[^]]*\\\\]"
 REPOCONFIGREGEX+="[[:space:]]*) https?://${BASEREPOCONFIG}"
 stage_install_debian
 
 do_package