Refactor OAuth2TokenService to have profile- and device-based implementations.

chrome/common/pref_names.cc

Index: chrome/common/pref_names.cc
diff --git a/chrome/common/pref_names.cc b/chrome/common/pref_names.cc
index 6a553ec054b7c8e6c1f526390eb3d0a280fa97af..f290ab586ce2b5e4f7289e98953d5e0bf7c244f3 100644
--- a/chrome/common/pref_names.cc
+++ b/chrome/common/pref_names.cc
@@ -2040,6 +2040,13 @@ const char kUptimeLimit[] = "automatic_reboot.uptime_limit";
 // Whether an automatic reboot should be scheduled when an update has been
 // applied and a reboot is required to complete the update process.
 const char kRebootAfterUpdate[] = "automatic_reboot.reboot_after_update";
+
+// An any-api scoped refresh token for enterprise-enrolled devices.  Allows
+// for connection to Google APIs when the user isn't logged in.  Currently used
+// for for getting a cloudprint scoped token to allow printing in Guest mode,
+// Public Accounts and kiosks.
+const char kDeviceRobotAnyApiRefreshToken[] =
+    "device_robot_refresh_token.any-api";
 #endif
 
 // Whether there is a Flash version installed that supports clearing LSO data.