Refactor preference syncing.

chrome/browser/printing/print_job_manager.cc

 // Copyright (c) 2011 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/printing/print_job_manager.h"
 
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/prefs/pref_service.h"
 #include "chrome/browser/printing/print_job.h"
 #include "chrome/browser/printing/printer_query.h"
@@ skipping 72 matching lines @@
       *job = current_query;
       queued_queries_.erase(itr);
       DCHECK(current_query->is_valid());
       return;
     }
   }
 }
 
 // static
 void PrintJobManager::RegisterPrefs(PrefService* prefs) {
-  prefs->RegisterBooleanPref(prefs::kPrintingEnabled, true);
+  prefs->RegisterBooleanPref(prefs::kPrintingEnabled,
+                             true,
+                             false /* don't sync pref */);
 }
 
 void PrintJobManager::Observe(NotificationType type,
                               const NotificationSource& source,
                               const NotificationDetails& details) {
   switch (type.value) {
     case NotificationType::PRINT_JOB_EVENT: {
       OnPrintJobEvent(Source<PrintJob>(source).ptr(),
                       *Details<JobEventDetails>(details).ptr());
       break;
@@ skipping 53 matching lines @@
       break;
     }
     default: {
       NOTREACHED();
       break;
     }
   }
 }
 
 }  // namespace printing