Create signin component and componentize TokenWebData.

components/signin.gypi

Index: components/signin.gypi
diff --git a/chrome/metro_utils.gypi b/components/signin.gypi
similarity index 54%
copy from chrome/metro_utils.gypi
copy to components/signin.gypi
index 000ac2596347e64b244f8ddf9bf14b7874a60c55..dfbacd83feca00ab3a58c031f67f6cfd4df97ef5 100644
--- a/chrome/metro_utils.gypi
+++ b/components/signin.gypi
@@ -5,18 +5,22 @@
 {
   'targets': [
     {
-      'target_name': 'metro_utils',
+      'target_name': 'signin_core',
       'type': 'static_library',
       'dependencies': [
-        'installer_util',
+        'encryptor',
+        'webdata_common',
         '../base/base.gyp:base',
+        '../sql/sql.gyp:sql',
       ],
       'include_dirs': [
         '..',
       ],
       'sources': [
-        'browser/metro_utils/metro_chrome_win.cc',
-        'browser/metro_utils/metro_chrome_win.h',
+        'signin/core/webdata/token_service_table.cc',
+        'signin/core/webdata/token_service_table.h',
+        'signin/core/webdata/token_web_data.cc',
+        'signin/core/webdata/token_web_data.h',
       ],
     },
   ],