Add support for ubuntu 15.04(vivid) to install-build-deps.sh

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 55 matching lines @@
   do_inst_lib32=1
 fi
 
 # Check for lsb_release command in $PATH
 if ! which lsb_release > /dev/null; then
   echo "ERROR: lsb_release not found in \$PATH" >&2
   exit 1;
 fi
 
 lsb_release=$(lsb_release --codename --short)
-ubuntu_codenames="(precise|trusty|utopic)"
+ubuntu_codenames="(precise|trusty|utopic|vivid)"
 if [ 0 -eq "${do_unsupported-0}" ] && [ 0 -eq "${do_quick_check-0}" ] ; then
   if [[ ! $lsb_release =~ $ubuntu_codenames ]]; then
-    echo "ERROR: Only Ubuntu 12.04 (precise), 14.04 (trusty) and " \
-        "14.10 (utopic) are currently supported" >&2
+    echo "ERROR: Only Ubuntu 12.04 (precise), 14.04 (trusty), " \
+      "14.10 (utopic) and 15.04 (vivid) are currently supported" >&2
     exit 1
   fi
 
   if ! uname -m | egrep -q "i686|x86_64"; then
     echo "Only x86 architectures are currently supported" >&2
     exit
   fi
 fi
 
 if [ "x$(id -u)" != x0 ] && [ 0 -eq "${do_quick_check-0}" ]; then
@@ skipping 361 matching lines @@
   # only contains libcrypto.so.1.0.0 and not the symlink needed for
   # linking (libcrypto.so).
   create_library_symlink /lib/i386-linux-gnu/libcrypto.so.1.0.0 \
       /usr/lib/i386-linux-gnu/libcrypto.so
 
   create_library_symlink /lib/i386-linux-gnu/libssl.so.1.0.0 \
       /usr/lib/i386-linux-gnu/libssl.so
 else
   echo "Skipping symbolic links for NaCl."
 fi