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

chrome/browser/chromeos/login/easy_unlock/easy_unlock_key_manager.cc

Index: chrome/browser/chromeos/login/easy_unlock/easy_unlock_key_manager.cc
diff --git a/chrome/browser/chromeos/login/easy_unlock/easy_unlock_key_manager.cc b/chrome/browser/chromeos/login/easy_unlock/easy_unlock_key_manager.cc
index 94a5e8957b10df57231bcdc59fea14c2f896dc16..d6479a613938f5deed7c0287b4f248b1d68b18ad 100644
--- a/chrome/browser/chromeos/login/easy_unlock/easy_unlock_key_manager.cc
+++ b/chrome/browser/chromeos/login/easy_unlock/easy_unlock_key_manager.cc
@@ -65,6 +65,7 @@ void EasyUnlockKeyManager::RefreshKeys(const UserContext& user_context,
   if (remote_devices.empty() ||
       tpm_key_manager->PrepareTpmKey(false /* check_private_key */,
                                      do_refresh_keys)) {
+    PA_LOG(WARNING) << "Refreshing keys...";
     do_refresh_keys.Run();
   } else {
     // In case Chrome is supposed to restart to apply user session flags, the
@@ -73,6 +74,7 @@ void EasyUnlockKeyManager::RefreshKeys(const UserContext& user_context,
     // loading takes too much time. Note that in normal circumstances the
     // chances that TPM slot cannot be loaded should be extremely low.
     // TODO(tbarzic): Add some metrics to measure if the timeout even gets hit.
+    PA_LOG(WARNING) << "Refresh keys after loading TPM...";
     tpm_key_manager->StartGetSystemSlotTimeoutMs(2000);
   }
 }
@@ -87,9 +89,13 @@ void EasyUnlockKeyManager::RefreshKeysWithTpmKeyPresent(
   const std::string tpm_public_key =
       tpm_key_manager->GetPublicTpmKey(user_context.GetAccountId());
 
+  PA_LOG(WARNING) << "Refreshing keys: " << remote_devices;
+
   EasyUnlockDeviceKeyDataList devices;
-  if (!RemoteDeviceListToDeviceDataList(*remote_devices, &devices))
+  if (!RemoteDeviceListToDeviceDataList(*remote_devices, &devices)) {
+    PA_LOG(ERROR) << "ERROR Coverting remote devices";
     devices.clear();
+  }
 
   write_operation_queue_.push_back(
       base::MakeUnique<EasyUnlockRefreshKeysOperation>(