Interactive autofill: Handle Online Wallet being unavailable.

chrome/browser/autofill/wallet/wallet_client.h

 // 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_WALLET_CLIENT_H_
 #define CHROME_BROWSER_AUTOFILL_WALLET_WALLET_CLIENT_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 86 matching lines @@
 
   // SendAutocheckoutStatus is used for tracking the success of Autocheckout
   // flows. |status| is the result of the flow, |merchant_domain| is the domain
   // where the purchase occured, and |google_transaction_id| is the same as the
   // one provided by GetWalletItems.
   void SendAutocheckoutStatus(autofill::AutocheckoutStatus status,
                               const std::string& merchant_domain,
                               const std::string& google_transaction_id,
                               WalletClientObserver* observer);
 
+  // Whether there is a currently running request (i.e. if |request_| != NULL).
+  bool IsRequestInProgress() const;

[Ilya Sherman, 2013/02/11 06:07:01]

Optional nit: Perhaps "Has" rather than "Is"?

+
  private:
   // TODO(ahutter): Implement this.
   std::string GetRiskParams() { return ""; }
 
   enum RequestType {
     NO_PENDING_REQUEST,
     ACCEPT_LEGAL_DOCUMENTS,
     ENCRYPT_OTP,
     ESCROW_SENSITIVE_INFORMATION,
     GET_FULL_WALLET,
@@ skipping 30 matching lines @@
   // to be initiated as only one request may be running at a given time.
   RequestType request_type_;
 
   DISALLOW_COPY_AND_ASSIGN(WalletClient);
 };
 
 }  // namespace wallet
 
 #endif  // CHROME_BROWSER_AUTOFILL_WALLET_WALLET_CLIENT_H_