Fix autofill pyauto tests

chrome/browser/automation/testing_automation_provider.cc

 // Copyright (c) 2010 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 "chrome/browser/automation/testing_automation_provider.h"
 
 #include "app/message_box_flags.h"
 #include "base/command_line.h"
 #include "base/json/json_reader.h"
 #include "base/json/json_writer.h"
@@ skipping 3756 matching lines @@
 // json input.
 // Sample json output: {}
 void TestingAutomationProvider::FillAutoFillProfile(
     Browser* browser,
     DictionaryValue* args,
     IPC::Message* reply_message) {
   AutomationJSONReply reply(this, reply_message);
   ListValue* profiles = NULL;
   ListValue* cards = NULL;
 
-  if (!args->GetList("profiles", &profiles)) {
-    reply.SendError("Invalid or missing profiles list");
-    return;
-  }
-
-  if (!args->GetList("credit_cards", &cards)) {
-    reply.SendError("Invalid or missing credit_cards list");
-    return;
-  }
+  // It's ok for profiles/credit_cards elements to be missing.
+  args->GetList("profiles", &profiles);
+  args->GetList("credit_cards", &cards);
 
   std::string error_mesg;
 
   std::vector<AutoFillProfile> autofill_profiles;
   std::vector<CreditCard> credit_cards;
   // Create an AutoFillProfile for each of the dictionary profiles.
   if (profiles) {
     autofill_profiles = GetAutoFillProfilesFromList(*profiles, &error_mesg);
   }
   // Create a CreditCard for each of the dictionary values.
@@ skipping 721 matching lines @@
     // If you change this, update Observer for NotificationType::SESSION_END
     // below.
     MessageLoop::current()->PostTask(FROM_HERE,
         NewRunnableMethod(this, &TestingAutomationProvider::OnRemoveProvider));
   }
 }
 
 void TestingAutomationProvider::OnRemoveProvider() {
   AutomationProviderList::GetInstance()->RemoveProvider(this);
 }