[USS] Impelementation for GetData and GetAllData

components/autofill/core/browser/webdata/autocomplete_syncable_service.cc

 // Copyright (c) 2012 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/webdata/autocomplete_syncable_service.h"
 
 #include <stdint.h>
 
 #include <utility>
 
@@ skipping 299 matching lines @@
   }
 
   AutofillKey key(autofill_specifics.name().c_str(),
                   autofill_specifics.value().c_str());
   AutocompleteEntryMap::iterator it = loaded_data->find(key);
   const google::protobuf::RepeatedField<int64_t>& timestamps =
       autofill_specifics.usage_timestamp();
   if (it == loaded_data->end()) {
     // New entry.
     base::Time date_created, date_last_used;
-    if (timestamps.size() > 0) {
+    if (!timestamps.empty()) {
       date_created = base::Time::FromInternalValue(*timestamps.begin());
       date_last_used = base::Time::FromInternalValue(*timestamps.rbegin());
     }
     new_entries->push_back(AutofillEntry(key, date_created, date_last_used));
   } else {
     // Entry already present - merge if necessary.
     base::Time date_created, date_last_used;
     bool different = MergeTimestamps(timestamps, *it->second.second,
                                      &date_created, &date_last_used);
     if (different) {
@@ skipping 89 matching lines @@
 }
 
 // static
 std::string AutocompleteSyncableService::KeyToTag(const std::string& name,
                                                   const std::string& value) {
   std::string prefix(kAutofillEntryNamespaceTag);
   return prefix + net::EscapePath(name) + "|" + net::EscapePath(value);
 }
 
 }  // namespace autofill