linux_aura: Add openbox to install-build-deps.sh

Also, remove metacity, which was left over from the last time I did
anything with trying to get a window manager better than icewm on the
bots.

BUG=308335
R=phajdan.jr@chromium.org

Review URL: https://codereview.chromium.org/26205007

git-svn-id: http://src.chromium.org/svn/trunk/src/build@229179 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

install-build-deps.sh

@@ -86,7 +86,7 @@ dev_list="apache2.2-bin bison curl elfutils fakeroot flex g++ gperf
           libnss3-dev libpam0g-dev libpci-dev libpulse-dev libsctp-dev
           libspeechd-dev libsqlite3-dev libssl-dev libudev-dev libwww-perl
           libxslt1-dev libxss-dev libxt-dev libxtst-dev mesa-common-dev
-          metacity patch perl php5-cgi pkg-config python python-cherrypy3
+          openbox patch perl php5-cgi pkg-config python python-cherrypy3
           python-dev python-psutil rpm ruby subversion ttf-dejavu-core
           ttf-indic-fonts ttf-kochi-gothic ttf-kochi-mincho ttf-thai-tlwg
           wdiff git-core