[Telemetry] Implement automatic installation of optional openCV dependecy.

build/install-build-deps.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.
 
 # 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 137 matching lines @@
 nacl_list="g++-mingw-w64-i686 lib32z1-dev
            libasound2:i386 libcap2:i386 libelf-dev:i386 libexif12:i386
            libfontconfig1:i386 libgconf-2-4:i386 libglib2.0-0:i386 libgpm2:i386
            libgtk2.0-0:i386 libncurses5:i386 lib32ncurses5-dev
            libnss3:i386 libpango1.0-0:i386
            libssl0.9.8:i386 libtinfo-dev libtinfo-dev:i386 libtool
            libxcomposite1:i386 libxcursor1:i386 libxdamage1:i386 libxi6:i386
            libxrandr2:i386 libxss1:i386 libxtst6:i386 texinfo xvfb
            ${naclports_list}"
 
+# Packages needed for telemetry only
+telemetry_list="python-opencv"

[tonyg, 2014/10/23 16:56:34]

Please land this change first. I believe we'll have to request Chrome-Labs to
explicitly run this script on the bots before we make the Telemetry change that
depends on it. Also, we (Dave?) will need to figure out a way to pull
third-party deps into the standalone zip.

+
 # Find the proper version of libgbm-dev. We can't just install libgbm-dev as
 # it depends on mesa, and only one version of mesa can exists on the system.
 # Hence we must match the same version or this entire script will fail.
 mesa_variant=""
 for variant in "-lts-quantal" "-lts-raring" "-lts-saucy" "-lts-trusty"; do
   if $(dpkg-query -Wf'${Status}' libgl1-mesa-glx${variant} | \
        grep -q " ok installed"); then
     mesa_variant="${variant}"
   fi
 done
@@ skipping 118 matching lines @@
 fi
 
 if test "$do_inst_nacl" = "1"; then
   echo "Including NaCl, NaCl toolchain, NaCl ports dependencies."
 else
   echo "Skipping NaCl, NaCl toolchain, NaCl ports dependencies."
   nacl_list=
 fi
 
 packages="$(
-  echo "${dev_list} ${lib_list} ${dbg_list} ${arm_list} ${nacl_list}" |
-  tr " " "\n" | sort -u | tr "\n" " "
+  echo "${dev_list} ${lib_list} ${dbg_list} ${arm_list} ${nacl_list} " \
+    "${telemetry_list}" | tr " " "\n" | sort -u | tr "\n" " "
 )"
 
 if [ 1 -eq "${do_quick_check-0}" ] ; then
   failed_check="$(dpkg-query -W -f '${PackageSpec}:${Status}\n' \
     ${packages} 2>&1 | grep -v "ok installed" || :)"
   if [ -n "${failed_check}" ]; then
     echo
     nomatch="$(echo "${failed_check}" | \
       sed -e "s/^No packages found matching \(.*\).$/\1/;t;d")"
     missing="$(echo "${failed_check}" | \
@@ skipping 93 matching lines @@
   echo "Installing symbolic links for NaCl."
   if [ ! -r /usr/lib/i386-linux-gnu/libcrypto.so ]; then
     sudo ln -fs libcrypto.so.0.9.8 /usr/lib/i386-linux-gnu/libcrypto.so
   fi
   if [ ! -r /usr/lib/i386-linux-gnu/libssl.so ]; then
     sudo ln -fs libssl.so.0.9.8 /usr/lib/i386-linux-gnu/libssl.so
   fi
 else
   echo "Skipping symbolic links for NaCl."
 fi