Add an AutofillProfileComparator class.

components/autofill/core/browser/autofill_profile.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_PROFILE_H_
 #define COMPONENTS_AUTOFILL_CORE_BROWSER_AUTOFILL_PROFILE_H_
 
 #include <stddef.h>
 
 #include <iosfwd>
@@ skipping 168 matching lines @@
   // TODO(crbug.com/574081): Move common profile methods to a utils file.
   // Returns a standardized representation of the given string for comparison
   // purposes. The resulting string will be lower-cased with all punctuation
   // substituted by spaces. Whitespace will be converted to ASCII space, and
   // multiple whitespace characters will be collapsed.
   //
   // This string is designed for comparison purposes only and isn't suitable
   // for storing or displaying to the user.
   static base::string16 CanonicalizeProfileString(const base::string16& str);
 
-  // Returns true if the given two profile strings are similar enough that
-  // they probably refer to the same thing.
-  static bool AreProfileStringsSimilar(const base::string16& a,
-                                       const base::string16& b);
-
  private:
   typedef std::vector<const FormGroup*> FormGroupList;
 
   // FormGroup:
   void GetSupportedTypes(ServerFieldTypeSet* supported_types) const override;
 
   // Builds inferred label from the first |num_fields_to_include| non-empty
   // fields in |label_fields|. Uses as many fields as possible if there are not
   // enough non-empty fields.
   base::string16 ConstructInferredLabel(
@@ skipping 45 matching lines @@
   // a hash of the contents.
   std::string server_id_;
 };
 
 // So we can compare AutofillProfiles with EXPECT_EQ().
 std::ostream& operator<<(std::ostream& os, const AutofillProfile& profile);
 
 }  // namespace autofill
 
 #endif  // COMPONENTS_AUTOFILL_CORE_BROWSER_AUTOFILL_PROFILE_H_