Make fetch chromium operate in git-only mode.

recipes/chromium.py

Index: recipes/chromium.py
diff --git a/recipes/chromium.py b/recipes/chromium.py
index 1ced1c4b6aa7f78943ca1fb66ca30b0830cfa4a6..a99fb9ec83c23a5da550958da050a257880a7916 100644
--- a/recipes/chromium.py
+++ b/recipes/chromium.py
@@ -26,19 +26,12 @@ class Chromium(recipe_util.Recipe):
       solution['custom_vars'] = {'webkit_rev': ''}
     spec = {
       'solutions': [solution],
-      'svn_url': 'svn://svn.chromium.org/chrome',
-      'svn_branch': 'trunk/src',
-      'svn_ref': 'master',
     }
-    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(',')
     if props.get('target_os_only'):
       spec['target_os_only'] = props['target_os_only']
-    checkout_type = 'gclient_git_svn'
-    if props.get('nosvn'):
-      checkout_type = 'gclient_git'
+    checkout_type = 'gclient_git'
     spec_type = '%s_spec' % checkout_type
     return {
       'type': checkout_type,