Refactor preference syncing.

chrome/browser/sync/profile_sync_service.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/sync/profile_sync_service.h"
 
 #include <stddef.h>
 #include <map>
 #include <ostream>
 #include <set>
@@ skipping 224 matching lines @@
                      << "is invalid: " << value;
       }
     }
   }
 }
 
 void ProfileSyncService::RegisterPreferences() {
   PrefService* pref_service = profile_->GetPrefs();
   if (pref_service->FindPreference(prefs::kSyncLastSyncedTime))
     return;
-  pref_service->RegisterInt64Pref(prefs::kSyncLastSyncedTime, 0);
-  pref_service->RegisterBooleanPref(prefs::kSyncHasSetupCompleted, false);
-  pref_service->RegisterBooleanPref(prefs::kSyncSuppressStart, false);
+  pref_service->RegisterInt64Pref(prefs::kSyncLastSyncedTime,
+                                  0,
+                                  PrefService::UNSYNCABLE_PREF);
+  pref_service->RegisterBooleanPref(prefs::kSyncHasSetupCompleted,
+                                    false,
+                                    PrefService::UNSYNCABLE_PREF);
+  pref_service->RegisterBooleanPref(prefs::kSyncSuppressStart,
+                                    false,
+                                    PrefService::UNSYNCABLE_PREF);
 
   // If you've never synced before, or if you're using Chrome OS, all datatypes
   // are on by default.
   // TODO(nick): Perhaps a better model would be to always default to false,
   // and explicitly call SetDataTypes() when the user shows the wizard.
 #if defined(OS_CHROMEOS)
   bool enable_by_default = true;
 #else
   bool enable_by_default =
       !pref_service->HasPrefPath(prefs::kSyncHasSetupCompleted);
 #endif
 
-  pref_service->RegisterBooleanPref(prefs::kSyncBookmarks, true);
-  pref_service->RegisterBooleanPref(prefs::kSyncPasswords, enable_by_default);
-  pref_service->RegisterBooleanPref(prefs::kSyncPreferences, enable_by_default);
-  pref_service->RegisterBooleanPref(prefs::kSyncAutofill, enable_by_default);
-  pref_service->RegisterBooleanPref(prefs::kSyncThemes, enable_by_default);
-  pref_service->RegisterBooleanPref(prefs::kSyncTypedUrls, enable_by_default);
-  pref_service->RegisterBooleanPref(prefs::kSyncExtensions, enable_by_default);
-  pref_service->RegisterBooleanPref(prefs::kSyncApps, enable_by_default);
-  pref_service->RegisterBooleanPref(prefs::kSyncSessions, enable_by_default);
+  pref_service->RegisterBooleanPref(prefs::kSyncBookmarks,
+                                    true,
+                                    PrefService::UNSYNCABLE_PREF);
+  pref_service->RegisterBooleanPref(prefs::kSyncPasswords,
+                                    enable_by_default,
+                                    PrefService::UNSYNCABLE_PREF);
+  pref_service->RegisterBooleanPref(prefs::kSyncPreferences,
+                                    enable_by_default,
+                                    PrefService::UNSYNCABLE_PREF);
+  pref_service->RegisterBooleanPref(prefs::kSyncAutofill,
+                                    enable_by_default,
+                                    PrefService::UNSYNCABLE_PREF);
+  pref_service->RegisterBooleanPref(prefs::kSyncThemes,
+                                    enable_by_default,
+                                    PrefService::UNSYNCABLE_PREF);
+  pref_service->RegisterBooleanPref(prefs::kSyncTypedUrls,
+                                    enable_by_default,
+                                    PrefService::UNSYNCABLE_PREF);
+  pref_service->RegisterBooleanPref(prefs::kSyncExtensions,
+                                    enable_by_default,
+                                    PrefService::UNSYNCABLE_PREF);
+  pref_service->RegisterBooleanPref(prefs::kSyncApps,
+                                    enable_by_default,
+                                    PrefService::UNSYNCABLE_PREF);
+  pref_service->RegisterBooleanPref(prefs::kSyncSessions,
+                                    enable_by_default,
+                                    PrefService::UNSYNCABLE_PREF);
   pref_service->RegisterBooleanPref(prefs::kKeepEverythingSynced,
-      enable_by_default);
-  pref_service->RegisterBooleanPref(prefs::kSyncManaged, false);
-  pref_service->RegisterStringPref(prefs::kEncryptionBootstrapToken, "");
+                                    enable_by_default,
+                                    PrefService::UNSYNCABLE_PREF);
+  pref_service->RegisterBooleanPref(prefs::kSyncManaged,
+                                    false,
+                                    PrefService::UNSYNCABLE_PREF);
+  pref_service->RegisterStringPref(prefs::kEncryptionBootstrapToken,
+                                   "",
+                                   PrefService::UNSYNCABLE_PREF);
 
   pref_service->RegisterBooleanPref(prefs::kSyncAutofillProfile,
-      enable_by_default);
+                                    enable_by_default,
+                                    PrefService::UNSYNCABLE_PREF);
 }
 
 void ProfileSyncService::ClearPreferences() {
   PrefService* pref_service = profile_->GetPrefs();
   pref_service->ClearPref(prefs::kSyncLastSyncedTime);
   pref_service->ClearPref(prefs::kSyncHasSetupCompleted);
   pref_service->ClearPref(prefs::kEncryptionBootstrapToken);
 
   // TODO(nick): The current behavior does not clear e.g. prefs::kSyncBookmarks.
   // Is that really what we want?
@@ skipping 806 matching lines @@
 }
 
 void ProfileSyncService::ActivateDataType(
     DataTypeController* data_type_controller,
     ChangeProcessor* change_processor) {
   if (!backend_.get()) {
     NOTREACHED();
     return;
   }
   DCHECK(backend_initialized_);
-  change_processor->Start(profile(), backend_->GetUserShare());
   backend_->ActivateDataType(data_type_controller, change_processor);
 }
 
 void ProfileSyncService::DeactivateDataType(
     DataTypeController* data_type_controller,
     ChangeProcessor* change_processor) {
-  change_processor->Stop();
-  if (backend_.get())
-    backend_->DeactivateDataType(data_type_controller, change_processor);
+  if (!backend_.get())
+    return;
+  backend_->DeactivateDataType(data_type_controller, change_processor);
 }
 
 void ProfileSyncService::SetPassphrase(const std::string& passphrase,
                                        bool is_explicit,
                                        bool is_creation) {
   if (ShouldPushChanges() || IsPassphraseRequired()) {
     backend_->SetPassphrase(passphrase, is_explicit);
   } else {
     cached_passphrase_.value = passphrase;
     cached_passphrase_.is_explicit = is_explicit;
@@ skipping 175 matching lines @@
   // is initialized, all enabled data types are consistent with one
   // another, and no unrecoverable error has transpired.
   if (unrecoverable_error_detected_)
     return false;
 
   if (!data_type_manager_.get())
     return false;
 
   return data_type_manager_->state() == DataTypeManager::CONFIGURED;
 }