Sync: Turn on full history sync by default.

sync/internal_api/sync_manager_impl.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 "sync/internal_api/sync_manager_impl.h"
 
 #include <string>
 
 #include "base/base64.h"
 #include "base/bind.h"
@@ skipping 1348 matching lines @@
   ReadNode autofill_culling_node(&trans);
   if (autofill_culling_node.InitByClientTagLookup(
           syncer::EXPERIMENTS,
           syncer::kAutofillCullingTag) == BaseNode::INIT_OK &&
       autofill_culling_node.GetExperimentsSpecifics().
           autofill_culling().enabled()) {
     experiments->autofill_culling = true;
     found_experiment = true;
   }
 
-  ReadNode full_history_sync_node(&trans);
-  if (full_history_sync_node.InitByClientTagLookup(
-          syncer::EXPERIMENTS,
-          syncer::kFullHistorySyncTag) == BaseNode::INIT_OK &&
-      full_history_sync_node.GetExperimentsSpecifics().
-          history_delete_directives().enabled()) {
-    experiments->full_history_sync = true;
-    found_experiment = true;
-  }
-
   ReadNode favicon_sync_node(&trans);
   if (favicon_sync_node.InitByClientTagLookup(
           syncer::EXPERIMENTS,
           syncer::kFaviconSyncTag) == BaseNode::INIT_OK) {
     experiments->favicon_sync = favicon_sync_node.GetExperimentsSpecifics().
         favicon_sync().enabled();
     experiments->favicon_sync_limit =
         favicon_sync_node.GetExperimentsSpecifics().favicon_sync().
             favicon_sync_limit();
     found_experiment = true;
@@ skipping 15 matching lines @@
 int SyncManagerImpl::GetDefaultNudgeDelay() {
   return kDefaultNudgeDelayMilliseconds;
 }
 
 // static.
 int SyncManagerImpl::GetPreferencesNudgeDelay() {
   return kPreferencesNudgeDelayMilliseconds;
 }
 
 }  // namespace syncer