Add chromecast_build gyp variable and add rules when the variable is set to 1.

build/install-build-deps.sh

Index: build/install-build-deps.sh
diff --git a/build/install-build-deps.sh b/build/install-build-deps.sh
index a02b748bd4c155c3296f10defbb3a9131f215091..94941e3a7dc8e31303226bc49fcb15deda6ff5a8 100755
--- a/build/install-build-deps.sh
+++ b/build/install-build-deps.sh
@@ -18,6 +18,8 @@ usage() {
        "fonts"
   echo "--[no-]nacl: enable or disable installation of prerequisites for"\
        "building standalone NaCl and all its toolchains"
+  echo "--[no-]chromecast: enable or disable installation of prerequisites for"\
+       "building cast shell"
   echo "--no-prompt: silently select standard options/defaults"
   echo "--quick-check: quickly try to determine if dependencies are installed"
   echo "               (this avoids interactive prompts and sudo commands,"
@@ -39,6 +41,7 @@ package_exists() {
 # own workstations can pass --no-arm --no-nacl when running the script.
 do_inst_arm=1
 do_inst_nacl=1
+do_inst_chromecast=1
 
 while test "$1" != ""
 do
@@ -53,6 +56,8 @@ do
   --no-chromeos-fonts)      do_inst_chromeos_fonts=0;;
   --nacl)                   do_inst_nacl=1;;
   --no-nacl)                do_inst_nacl=0;;
+  --chromecast)             do_inst_chromecast=1;;
+  --no-chromecast)          do_inst_chromecast=0;;
   --no-prompt)              do_default=1
                             do_quietly="-qq --assume-yes"
     ;;
@@ -159,6 +164,9 @@ arm_list="$arm_list $armel_list"
 # Packages to build standalone NaCl and all its toolchains.
 nacl_list="g++-mingw-w64-i686 libtinfo-dev:i386"
 
+# Packages to build (chromecast) cast shell
+chromecast_list="libdirectfb-dev"

[rjkroege, 2014/04/24 18:49:35]

Will making this not installed by default make setting up builders more tedious?
And are there any license issues with this package?

+
 # Some package names have changed over time
 if package_exists ttf-mscorefonts-installer; then
   dev_list="${dev_list} ttf-mscorefonts-installer"
@@ -274,8 +282,15 @@ else
   nacl_list=
 fi
 
+if test "$do_inst_chromecast" = "1"; then
+  echo "Including Chromecast dependencies."
+else
+  echo "Skipping Chromecast dependencies."
+  chromecast_list=
+fi
+
 packages="$(
-  echo "${dev_list} ${lib_list} ${dbg_list} ${arm_list} ${nacl_list}" |
+  echo "${dev_list} ${lib_list} ${dbg_list} ${arm_list} ${nacl_list} ${chromecast_list}" |
   tr " " "\n" | sort -u | tr "\n" " "
 )"