Autofill: Add WalletIntegrationAvailable() to components.

components/autofill/core/browser/options_util.cc

Index: components/autofill/core/browser/options_util.cc
diff --git a/components/autofill/core/browser/options_util.cc b/components/autofill/core/browser/options_util.cc
new file mode 100644
index 0000000000000000000000000000000000000000..fa2718649c8e2a5d22426f7cfcd61d38426d5a65
--- /dev/null
+++ b/components/autofill/core/browser/options_util.cc
@@ -0,0 +1,40 @@
+// Copyright 2015 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 "components/autofill/core/browser/options_util.h"
+
+#include "base/prefs/pref_service.h"
+#include "components/autofill/core/browser/personal_data_manager.h"
+#include "components/autofill/core/common/autofill_pref_names.h"
+#include "components/sync_driver/sync_service.h"
+
+namespace autofill {
+
+bool WalletIntegrationAvailable(
+    sync_driver::SyncService* sync_service,
+    const PrefService& pref_service,
+    const PersonalDataManager& personal_data_manager) {
+  if (!(sync_service && sync_service->IsSyncEnabledAndLoggedIn() &&
+        sync_service->GetPreferredDataTypes().Has(syncer::AUTOFILL_PROFILE))) {
+    return false;
+  }
+
+  if (!personal_data_manager.IsExperimentalWalletIntegrationEnabled())
+    return false;
+
+  // If the user is signed in and the feature is enabled, but no data is being
+  // synced, hide the option. The user doesn't have a Wallet account. If the
+  // feature is disabled, we can't know, so show the checkbox.
+  if (pref_service.GetBoolean(prefs::kAutofillWalletImportEnabled))
+    return true;
+
+  // If wallet is preferred but we haven't gotten the sync data yet, we don't
+  // know, so show the checkbox.
+  if (!sync_service->GetActiveDataTypes().Has(syncer::AUTOFILL_WALLET_DATA))
+    return true;
+
+  return personal_data_manager.HasServerData();
+}
+
+}  // namespace autofill