[EasyUnlock] Move DataWithTimestamp out of ForegroundEidGenerator so it can be shared.

chromeos/components/tether/ble_advertiser.h

Index: chromeos/components/tether/ble_advertiser.h
diff --git a/chromeos/components/tether/ble_advertiser.h b/chromeos/components/tether/ble_advertiser.h
index fcc10f56b5d12d7ed69ab3eb504f3c4c3bf272e2..8178ae5dea1b1e8c7ae32c0a923993bbc23673a4 100644
--- a/chromeos/components/tether/ble_advertiser.h
+++ b/chromeos/components/tether/ble_advertiser.h
@@ -11,6 +11,7 @@
 
 #include "base/memory/ref_counted.h"
 #include "base/memory/weak_ptr.h"
+#include "components/cryptauth/eid_data_with_timestamp.h"
 #include "components/cryptauth/foreground_eid_generator.h"
 #include "components/cryptauth/remote_device.h"
 #include "device/bluetooth/bluetooth_adapter.h"
@@ -70,8 +71,7 @@ class BleAdvertiser {
    public:
     IndividualAdvertisement(
         scoped_refptr<device::BluetoothAdapter> adapter,
-        std::unique_ptr<cryptauth::ForegroundEidGenerator::DataWithTimestamp>
-            advertisement_data,
+        std::unique_ptr<cryptauth::EidDataWithTimestamp> advertisement_data,
         std::shared_ptr<BleAdvertisementUnregisterHandler> unregister_handler);
 
     // device::BluetoothAdapter::Observer
@@ -104,8 +104,7 @@ class BleAdvertiser {
 
     scoped_refptr<device::BluetoothAdapter> adapter_;
     bool is_initializing_advertising_;
-    std::unique_ptr<cryptauth::ForegroundEidGenerator::DataWithTimestamp>
-        advertisement_data_;
+    std::unique_ptr<cryptauth::EidDataWithTimestamp> advertisement_data_;
     std::shared_ptr<BleAdvertisementUnregisterHandler> unregister_handler_;
     scoped_refptr<device::BluetoothAdvertisement> advertisement_;