Add fetch recipe alias targeting Android

recipes/chromium.py

Index: recipes/chromium.py
diff --git a/recipes/chromium.py b/recipes/chromium.py
index b9156ed926c8cbd484dd1641e7c260fc95dfc2fa..ef63fa0418ffbf7dcd4e036ff1a4add3c9219129 100644
--- a/recipes/chromium.py
+++ b/recipes/chromium.py
@@ -30,6 +30,8 @@ class Chromium(recipe_util.Recipe):
     }
     if props.get('submodule_git_svn_spec'):
       spec['submodule_git_svn_spec'] = props['submodule_git_svn_spec']
+    if props.get('target_os'):
+      spec['target_os'] = props['target_os'].split(',')

[M-A Ruel, 2013/04/24 13:09:14]

Any problem about whitespaces? If so;
[i.strip() for i in props['target_os'].split(',') if i.strip()]

[janx, 2013/04/26 10:05:09]

I don't see why we would have whitespace problems. To set those values, the user
calls `fetch recipe --target_os=first,second`, and adding whitespaces here would
require additional quotes or else fetch will see several arguments and break.
Also, `strip()` would not help against errors like `--target_os="first second"`,
so I guess we can let gclient complain about any format errors in the resulting
spec.

     checkout_type = 'gclient_git_svn'
     if props.get('nosvn'):
       checkout_type = 'gclient_git'