Add a configuration to fetch "ios_internal" project.

fetch_configs/ios_internal.py

Index: fetch_configs/ios_internal.py
diff --git a/fetch_configs/chromium.py b/fetch_configs/ios_internal.py
similarity index 81%
copy from fetch_configs/chromium.py
copy to fetch_configs/ios_internal.py
index d461aa0fc5e0d556f88363dbed0ad95cdd779494..e2376cb33acdfbd912762674a22cbe1d55b97798 100644
--- a/fetch_configs/chromium.py
+++ b/fetch_configs/ios_internal.py
@@ -14,21 +14,21 @@ class Chromium(config_util.Config):
 
   @staticmethod
   def fetch_spec(props):
-    url = 'https://chromium.googlesource.com/chromium/src.git'
-    solution = { 'name'   :'src',
+    url = 'https://chrome-internal.googlesource.com/chrome/ios_internal.git'
+    solution = { 'name'   :'src/ios_internal',
                  'url'    : url,
-                 'deps_file': '.DEPS.git',
+                 'deps_file': 'DEPS',
                  'managed'   : False,
                  'custom_deps': {},
                  'safesync_url': '',
     }
-    if props.get('webkit_revision', '') == 'ToT':
-      solution['custom_vars'] = {'webkit_revision': ''}
     spec = {
       'solutions': [solution],
     }
     if props.get('target_os'):
       spec['target_os'] = props['target_os'].split(',')
+    else:
+      spec['target_os'] = ['ios']
     if props.get('target_os_only'):
       spec['target_os_only'] = props['target_os_only']
     return {