Sync: Turn on full history sync by default.

chrome/browser/history/web_history_service_factory.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/history/web_history_service_factory.h"
 
 #include "base/command_line.h"
 #include "chrome/browser/content_settings/cookie_settings.h"
 #include "chrome/browser/history/web_history_service.h"
 #include "chrome/browser/profiles/profile_dependency_manager.h"
 #include "chrome/browser/signin/token_service_factory.h"
 #include "chrome/browser/sync/profile_sync_service.h"
 #include "chrome/browser/sync/profile_sync_service_factory.h"
 #include "chrome/common/chrome_switches.h"
 
 namespace {
 // Returns true if the user is signed in and full history sync is enabled,
 // and false otherwise.
 bool IsHistorySyncEnabled(Profile* profile) {
-  if (CommandLine::ForCurrentProcess()->HasSwitch(
-          switches::kHistoryEnableFullHistorySync)) {
+  if (!CommandLine::ForCurrentProcess()->HasSwitch(
+          switches::kHistoryDisableFullHistorySync)) {
     ProfileSyncService* sync =
         ProfileSyncServiceFactory::GetInstance()->GetForProfile(profile);
     return sync &&
         sync->GetPreferredDataTypes().Has(syncer::HISTORY_DELETE_DIRECTIVES);
   }
   return false;
 }
 
 }  // namespace
 
@@ skipping 22 matching lines @@
 
 WebHistoryServiceFactory::WebHistoryServiceFactory()
     : ProfileKeyedServiceFactory("WebHistoryServiceFactory",
                                  ProfileDependencyManager::GetInstance()) {
   DependsOn(TokenServiceFactory::GetInstance());
   DependsOn(CookieSettings::Factory::GetInstance());
 }
 
 WebHistoryServiceFactory::~WebHistoryServiceFactory() {
 }