[Autofill] Dedupe similar profiles on insertion.

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 81 matching lines @@
   // Same as operator==, but ignores differences in guid and cares about
   // differences in usage stats.
   bool EqualsForSyncPurposes(const AutofillProfile& profile) const;
 
   // Equality operators compare GUIDs, origins, language code, and the contents
   // in the comparison. Usage metadata (use count, use date, modification date)
   // are NOT compared.
   bool operator==(const AutofillProfile& profile) const;
   virtual bool operator!=(const AutofillProfile& profile) const;
 
-  // Returns concatenation of first name, last name, address line 1 and city.
-  // This acts as the basis of comparison for new values that are submitted
-  // through forms to aid with correct aggregation of new data.
-  const base::string16 PrimaryValue() const;
+  // Returns concatenation of first name, last name, address line 1 and city,
+  // with each part separated by a whitespace. This acts as the basis of
+  // comparison for new values that are submitted through forms to aid with
+  // correct aggregation of new data.
+  const base::string16 PrimaryValue(const std::string& app_locale) const;
 
   // Returns true if the data in this AutofillProfile is a subset of the data in
   // |profile|.
   bool IsSubsetOf(const AutofillProfile& profile,
                   const std::string& app_locale) const;
 
   // Like IsSubsetOf, but only considers the types present in |types|.
   bool IsSubsetOfForFieldSet(const AutofillProfile& profile,
                              const std::string& app_locale,
                              const ServerFieldTypeSet& types) const;
@@ skipping 133 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_