message: extract_outside_compilation_pass: Fix device manager
  Summary: The DeviceMgr is now an abstract class.
  Test Plan: Test now passes.
  Reviewers: #tensorflow, #framework_ip_review_-_any_oss_or_third-party_code_use_has_been_approved, georgep
  Maniphest Tasks: T17725
diff: @@ -43,7 +43,7 @@ class ExtractOutsideCompilationPassTest : public ::testing::Test {
  std::vector<std::unique_ptr<Device>> devices;
  TF_CHECK_OK(DeviceFactory::AddDevices(
  session_options_, "/job:localhost/replica:0/task:0", &devices));
  - device_mgr_ = absl::make_unique<DeviceMgr>(std::move(devices));
  + device_mgr_ = absl::make_unique<StaticDeviceMgr>(std::move(devices));
  for (Device* d : device_mgr_->ListDevices()) {
  device_set_.AddDevice(d);
  }
  