Make fetch chromium operate in git-only mode.

DO NOT LAND until Flag Day.

R=stip@chromium.org
BUG=406165

Review URL: https://codereview.chromium.org/494993006

git-svn-id: svn://svn.chromium.org/chrome/trunk/tools/depot_tools@291565 0039d316-1c4b-4281-b951-d872f2087c98

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,