Modified to allow to preserve two-word string in first-name and last-name in autofill profile.

components/autofill/core/browser/autofill_profile.cc

 // 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.
 
 #include "components/autofill/core/browser/autofill_profile.h"
 
 #include <algorithm>
 #include <functional>
 #include <map>
 #include <ostream>
@@ skipping 500 matching lines @@
       }
     } else if (StringToLowerASCII(GetRawInfo(*it)) !=
                    StringToLowerASCII(profile.GetRawInfo(*it))) {
       return false;
     }
   }
 
   return true;
 }
 
+void AutofillProfile::OverwriteOrAppendNames(
+    const std::vector<NameInfo>& names) {
+  std::vector<NameInfo> results(name_);
+  for (std::vector<NameInfo>::const_iterator it = names.begin();
+       it != names.end();
+       ++it) {
+    NameInfo imported_name = *it;
+    bool should_append_imported_name = true;
+
+    for (size_t index = 0; index < name_.size(); ++index) {
+      NameInfo current_name = name_[index];
+      if (current_name == imported_name) {
+        should_append_imported_name = false;
+        break;
+      }
+
+      base::string16 full_name = current_name.GetRawInfo(NAME_FULL);
+      if (full_name == imported_name.GetRawInfo(NAME_FULL)) {
+        // The imported name has the same full name string as one of the
+        // existing names for this profile.  Because full names are
+        // _heuristically_ parsed into {first, middle, last} name components,
+        // it's possible that either the existing name or the imported name
+        // was misparsed.  Prefer to keep the name whose {first, middle,
+        // last} components do not match those computed by the heuristic
+        // parse, as this more likely represents the correct, user-input parse
+        // of the name.
+        NameInfo heuristically_parsed_name;
+        heuristically_parsed_name.SetRawInfo(NAME_FULL, full_name);
+        if (imported_name == heuristically_parsed_name) {
+          should_append_imported_name = false;
+          break;
+        }
+
+        if (current_name == heuristically_parsed_name) {
+          results[index] = imported_name;
+          should_append_imported_name = false;
+          break;
+        }
+      }
+    }
+
+    // Append unique names to the list.
+    if (should_append_imported_name)
+      results.push_back(imported_name);
+  }
+
+  name_.swap(results);
+}
+
 void AutofillProfile::OverwriteWithOrAddTo(const AutofillProfile& profile,
                                            const std::string& app_locale) {
   // Verified profiles should never be overwritten with unverified data.
   DCHECK(!IsVerified() || profile.IsVerified());
   set_origin(profile.origin());
   set_language_code(profile.language_code());
 
   ServerFieldTypeSet field_types;
   profile.GetNonEmptyTypes(app_locale, &field_types);
 
@@ skipping 29 matching lines @@
           AddPhoneIfUnique(*value_iter, app_locale, &existing_values);
         } else {
           std::vector<base::string16>::const_iterator existing_iter =
               std::find_if(
                   existing_values.begin(), existing_values.end(),
                   std::bind1st(CaseInsensitiveStringEquals(), *value_iter));
           if (existing_iter == existing_values.end())
             existing_values.insert(existing_values.end(), *value_iter);
         }
       }
-      SetRawMultiInfo(*iter, existing_values);
+      if (group == NAME)
+        OverwriteOrAppendNames(profile.name_);
+      else
+        SetRawMultiInfo(*iter, existing_values);
     } else {
       base::string16 new_value = profile.GetRawInfo(*iter);
       if (StringToLowerASCII(GetRawInfo(*iter)) !=
               StringToLowerASCII(new_value)) {
         SetRawInfo(*iter, new_value);
       }
     }
   }
 }
 
@@ skipping 286 matching lines @@
       << UTF16ToUTF8(profile.GetRawInfo(ADDRESS_HOME_SORTING_CODE))
       << " "
       << UTF16ToUTF8(profile.GetRawInfo(ADDRESS_HOME_COUNTRY))
       << " "
       << profile.language_code()
       << " "
       << UTF16ToUTF8(MultiString(profile, PHONE_HOME_WHOLE_NUMBER));
 }
 
 }  // namespace autofill