[Autofill] UKM for suggestions polled field.

components/autofill/core/browser/autofill_manager.h

 // Copyright 2013 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 COMPONENTS_AUTOFILL_CORE_BROWSER_AUTOFILL_MANAGER_H_
 #define COMPONENTS_AUTOFILL_CORE_BROWSER_AUTOFILL_MANAGER_H_
 
 #include <deque>
 #include <map>
 #include <memory>
@@ skipping 393 matching lines @@
                         FormStructure** updated_form) WARN_UNUSED_RESULT;
 
   // Returns a list of values from the stored profiles that match |type| and the
   // value of |field| and returns the labels of the matching profiles. |labels|
   // is filled with the Profile label.
   std::vector<Suggestion> GetProfileSuggestions(
       const FormStructure& form,
       const FormFieldData& field,
       const AutofillField& autofill_field) const;
 
-  // Returns a list of values from the stored credit cards that match |type| and
+  // Returns a list of values from the stored credit cards that match field type
   // the value of |field| and returns the labels of the matching credit cards.

[Jared Saul, 2017/05/24 18:06:35]

nit: "match field type the value of |field|" reads weird.  Should the first
'field type' be removed?  If so, s/match/matches.

[jiahuiguo, 2017/05/24 21:27:33]

Acknowledged. I just reverted this change, thanks for catching this.

   std::vector<Suggestion> GetCreditCardSuggestions(
       const FormFieldData& field,
       const AutofillType& type) const;
 
   // Parses the forms using heuristic matching and querying the Autofill server.
   void ParseForms(const std::vector<FormData>& forms);
 
   // Parses the form and adds it to |form_structures_|.
   bool ParseForm(const FormData& form, FormStructure** parsed_form_structure);
 
@@ skipping 230 matching lines @@
   FRIEND_TEST_ALL_PREFIXES(AutofillManagerTest,
                            OnLoadedServerPredictions_ResetManager);
   FRIEND_TEST_ALL_PREFIXES(AutofillManagerTest, DontOfferToSavePaymentsCard);
   FRIEND_TEST_ALL_PREFIXES(AutofillManagerTest, FillInUpdatedExpirationDate);
   DISALLOW_COPY_AND_ASSIGN(AutofillManager);
 };
 
 }  // namespace autofill
 
 #endif  // COMPONENTS_AUTOFILL_CORE_BROWSER_AUTOFILL_MANAGER_H_