Adds wallet::RequiredAction for when we start interacting with Online Wallet.

chrome/browser/autofill/wallet/required_action.h

Index: chrome/browser/autofill/wallet/required_action.h
diff --git a/chrome/browser/autofill/wallet/required_action.h b/chrome/browser/autofill/wallet/required_action.h
new file mode 100644
index 0000000000000000000000000000000000000000..3ff08263db7a13744c14a2be1e1cb79b12a72cd6
--- /dev/null
+++ b/chrome/browser/autofill/wallet/required_action.h
@@ -0,0 +1,38 @@
+// Copyright (c) 2012 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.
+
+#ifndef CHROME_BROWSER_AUTOFILL_WALLET_REQUIRED_ACTION_H_
+#define CHROME_BROWSER_AUTOFILL_WALLET_REQUIRED_ACTION_H_
+
+#include <string>
+
+namespace wallet {
+
+// Required actions are steps that must be taken before the current transaction
+// can proceed. Examples of this is include accepting the Terms of Service to
+// use Google Wallet (happens on first use or when the ToS are updated) or
+// typing a CVC when it's necessary verify the current user has access to the
+// backing card.
+enum RequiredAction {
+  UNKNOWN_TYPE = 0,  // Catch all type.
+  SETUP_WALLET,
+  ACCEPT_TOS,
+  GAIA_AUTH,
+  UPDATE_EXPIRATION_DATE,
+  UPGRADE_MIN_ADDRESS,
+  INVALID_FORM_FIELD,
+  CVC_RISK_CHALLENGE,
+};
+
+// Static helper functions to determine if an RequiredAction applies to either a
+// FullWallet or WalletItems.
+bool ActionAppliesToFullWallet(RequiredAction action);
+bool ActionAppliesToWalletItems(RequiredAction action);
+
+// Turn a string value of the parsed JSON response into an RequiredAction.
+RequiredAction ParseRequiredActionFromString(const std::string& str);
+
+}  // namespace wallet
+
+#endif  // CHROME_BROWSER_AUTOFILL_WALLET_REQUIRED_ACTION_H_