Remove most occurences of PrefRegistrySyncable::UNSYNCABLE_PREF

chrome/browser/autocomplete/zero_suggest_provider.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 "chrome/browser/autocomplete/zero_suggest_provider.h"
 
 #include "base/callback.h"
 #include "base/i18n/case_conversion.h"
 #include "base/json/json_string_value_serializer.h"
 #include "base/metrics/histogram.h"
@@ skipping 67 matching lines @@
 ZeroSuggestProvider* ZeroSuggestProvider::Create(
     AutocompleteProviderListener* listener,
     TemplateURLService* template_url_service,
     Profile* profile) {
   return new ZeroSuggestProvider(listener, template_url_service, profile);
 }
 
 // static
 void ZeroSuggestProvider::RegisterProfilePrefs(
     user_prefs::PrefRegistrySyncable* registry) {
-  registry->RegisterStringPref(
-      prefs::kZeroSuggestCachedResults,
-      std::string(),
-      user_prefs::PrefRegistrySyncable::UNSYNCABLE_PREF);
+  registry->RegisterStringPref(prefs::kZeroSuggestCachedResults, std::string());
 }
 
 void ZeroSuggestProvider::Start(const AutocompleteInput& input,
                                 bool minimal_changes,
                                 bool called_due_to_focus) {
   matches_.clear();
   if (!called_due_to_focus ||
       input.type() == metrics::OmniboxInputType::INVALID)
     return;
 
@@ skipping 384 matching lines @@
   if (!json_data.empty()) {
     scoped_ptr<base::Value> data(
         SearchSuggestionParser::DeserializeJsonData(json_data));
     if (data && ParseSuggestResults(
             *data, kDefaultZeroSuggestRelevance, false, &results_)) {
       ConvertResultsToAutocompleteMatches();
       results_from_cache_ = !matches_.empty();
     }
   }
 }