Add BUILD.gn files for chromecast/media

chromecast/chromecast.gni

Index: chromecast/chromecast.gni
diff --git a/chromecast/chromecast.gni b/chromecast/chromecast.gni
new file mode 100644
index 0000000000000000000000000000000000000000..fcbc3e0cc77371b23b1fa081bd6d0e2f3868073a
--- /dev/null
+++ b/chromecast/chromecast.gni
@@ -0,0 +1,6 @@
+declare_args() {

[brettw, 2015/04/21 16:39:09]

Copyright block.

[prashantv, 2015/04/21 18:21:36]

Done.

+  # chromecast_branding is set to "Chrome" for an official build
+  chromecast_branding = "Chromium"

[brettw, 2015/04/21 16:39:09]

You can choose how you want to do this. Since there are only two values we'll
ever have, I made the chrome branding one a boolean: is_chrome_branded. This
makes typos impossible and means you don't have hardcoded strings floating
around. So I would suggest (optional) is_chromecast_chrome_branded or something.

[prashantv, 2015/04/21 18:21:36]

Done.

+
+  use_playready = true
+}