Linux: Update Debian Wheezy sysroot package data, also include libpcap.

chrome/installer/linux/sysroot_scripts/sysroot-creator-debian.wheezy.sh

 #!/bin/sh
 #
 # Copyright (c) 2013 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 builds a Debian Wheezy sysroot for building Google Chrome.
 #@
 #@  Generally this script is invoked as:
 #@  sysroot-creator-debian.wheezy.sh <mode> <args>*
@@ skipping 19 matching lines @@
 ######################################################################
 # Package Config
 ######################################################################
 
 # this is where we get all the debian packages from
 readonly DEBIAN_REPO=http://http.us.debian.org/debian
 
 readonly PACKAGE_LIST_AMD64="${DEBIAN_REPO}/dists/wheezy/main/binary-amd64/Packages.bz2"
 readonly PACKAGE_LIST_I386="${DEBIAN_REPO}/dists/wheezy/main/binary-i386/Packages.bz2"
 
-# TODO(thestig) Remove unused libbz2 packages in the next sysroot update.
 # Sysroot packages: these are the packages needed to build chrome.
 # NOTE: When DEBIAN_PACKAGES is modified, the packagelist files must be updated
 # by running this script in GeneratePackageList mode.
 readonly DEBIAN_PACKAGES="\
   comerr-dev \
   gcc-4.6 \
   krb5-multidev \
   libasound2 \
   libasound2-dev \
   libatk1.0-0 \
   libatk1.0-dev \
   libavahi-client3 \
   libavahi-common3 \
-  libbz2-1.0 \
-  libbz2-dev \
   libc6 \
   libc6-dev \
   libcairo2 \
   libcairo2-dev \
   libcairo-gobject2 \
   libcairo-script-interpreter2 \
+  libcap-dev \
+  libcap2 \
   libcomerr2 \
   libcups2 \
   libcups2-dev \
   libdbus-1-3 \
   libdbus-1-dev \
   libdbus-glib-1-2 \
   libelf1 \
   libelf-dev \
   libexpat1 \
   libexpat1-dev \
@@ skipping 436 matching lines @@
   echo "ERROR: unknown function '$1'." >&2
   echo "For help, try:"
   echo "    $0 help"
   exit 1
 else
   ChangeDirectory
   SetEnvironmentVariables "$1"
   SanityCheck
   "$@"
 fi