Process TeamDrive change in change list.

google_apis/drive/drive_switches.cc

 // Copyright 2017 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "base/command_line.h"
 #include "google_apis/drive/drive_switches.h"
 
 namespace google_apis {
 namespace {
 // Enables or disables Team Drives integration.
 constexpr char kEnableTeamDrives[] = "team-drives";
 
 }
 
 TeamDrivesIntegrationStatus GetTeamDrivesIntegrationSwitch() {
   return base::CommandLine::ForCurrentProcess()->HasSwitch(kEnableTeamDrives) ?
       TEAM_DRIVES_INTEGRATION_ENABLED : TEAM_DRIVES_INTEGRATION_DISABLED;
 }
 
+std::string GetTeamDrivesIntegrationSwitchName() {
+  return kEnableTeamDrives;
+}
+
 }  // namespace google_apis