Add platform_utils and stub test lists for Linux.

build/install-build-deps.sh

 #!/bin/sh
 # 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
 set -ex
 
 # TODO(dkegel): add sha1sum verification
 download() {
   dir=$1
   file=$2
@@ skipping 11 matching lines @@
 }
 
 download_deb() {
   download $1 $2
   unpack_deb $2
 }
 
 install_hardy() {
   sudo apt-get install subversion pkg-config python perl g++ g++-multilib \
        bison flex gperf libnss3-dev libglib2.0-dev libgtk2.0-dev \
-       libnspr4-0d libnspr4-dev
+       libnspr4-0d libnspr4-dev wdiff
 
   wget -c http://www.trevp.com/tlslite/tlslite-0.3.8.tar.gz
   tar xvfz tlslite-0.3.8.tar.gz
   cd tlslite-0.3.8/
     python setup.py build
     sudo python setup.py install
   cd ..
   rm -rf tlslite-0.3.8
 }
 
@@ skipping 55 matching lines @@
 then
   install_hardy
 elif grep -q "Ubuntu 8.04" /etc/issue && test `uname -m` = x86_64
 then
   install_hardy_64
 else
   echo "Unsupported system"
   exit 1
 fi