[Sync] Refactor non-frontend DTC to handle new API properly.

chrome/browser/sync/glue/autofill_profile_data_type_controller.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/glue/autofill_profile_data_type_controller.h"
 
 #include "base/metrics/histogram.h"
+#include "base/task.h"
+#include "chrome/browser/autofill/personal_data_manager.h"
+#include "chrome/browser/autofill/personal_data_manager_factory.h"
+#include "chrome/browser/profiles/profile.h"
+#include "chrome/browser/sync/api/sync_error.h"
+#include "chrome/browser/sync/api/syncable_service.h"
 #include "chrome/browser/sync/profile_sync_factory.h"
+#include "chrome/browser/sync/profile_sync_service.h"
 #include "chrome/browser/webdata/web_data_service.h"
+#include "chrome/common/chrome_notification_types.h"
+#include "content/browser/browser_thread.h"
+#include "content/common/notification_service.h"
+#include "content/common/notification_source.h"
 
 namespace browser_sync {
 
 AutofillProfileDataTypeController::AutofillProfileDataTypeController(
     ProfileSyncFactory* profile_sync_factory,
     Profile* profile)
-    : AutofillDataTypeController(profile_sync_factory, profile) {}
+    : NewNonFrontendDataTypeController(profile_sync_factory, profile),
+      personal_data_(NULL) {
+}
 
 AutofillProfileDataTypeController::~AutofillProfileDataTypeController() {}
 
+bool AutofillProfileDataTypeController::StartModels() {
+  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
+  DCHECK_EQ(state(), MODEL_STARTING);
+  // Waiting for the personal data is subtle:  we do this as the PDM resets
+  // its cache of unique IDs once it gets loaded. If we were to proceed with
+  // association, the local ids in the mappings would wind up colliding.
+  personal_data_ = PersonalDataManagerFactory::GetForProfile(profile());
+  if (!personal_data_->IsDataLoaded()) {
+    personal_data_->SetObserver(this);
+    return false;
+  }
+
+  web_data_service_ = profile()->GetWebDataService(Profile::IMPLICIT_ACCESS);
+  if (web_data_service_.get() && web_data_service_->IsDatabaseLoaded()) {
+    return true;
+  } else {
+    notification_registrar_.Add(this, chrome::NOTIFICATION_WEB_DATABASE_LOADED,
+                                NotificationService::AllSources());
+    return false;
+  }
+}
+
+void AutofillProfileDataTypeController::OnPersonalDataChanged() {
+  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
+  DCHECK_EQ(state(), MODEL_STARTING);
+  personal_data_->RemoveObserver(this);
+  web_data_service_ = profile()->GetWebDataService(Profile::IMPLICIT_ACCESS);
+  if (web_data_service_.get() && web_data_service_->IsDatabaseLoaded()) {
+    set_state(ASSOCIATING);

[akalin, 2011/10/11 22:41:08]

decomp this block (shared with Observe) into its own function, like say,
DoStartAssociationAsync or something.

[Nicolas Zea, 2011/10/12 04:24:19]

Done.

+    if (!StartAssociationAsync()) {
+      SyncError error(FROM_HERE,
+                      "Failed to post association task.",
+                      type());
+      StartDoneImpl(ASSOCIATION_FAILED, NOT_RUNNING, error);
+    }
+  } else {
+    notification_registrar_.Add(this, chrome::NOTIFICATION_WEB_DATABASE_LOADED,
+                                NotificationService::AllSources());
+  }
+}
+
+void AutofillProfileDataTypeController::Observe(
+    int notification_type,
+    const NotificationSource& source,
+    const NotificationDetails& details) {
+  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
+  DCHECK_EQ(state(), MODEL_STARTING);
+  notification_registrar_.RemoveAll();
+  set_state(ASSOCIATING);
+  if (!StartAssociationAsync()) {
+    SyncError error(FROM_HERE,
+                    "Failed to post association task.",
+                    type());
+    StartDoneImpl(ASSOCIATION_FAILED, NOT_RUNNING, error);
+  }
+}
+
+bool AutofillProfileDataTypeController::StartAssociationAsync() {
+  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
+  DCHECK_EQ(state(), ASSOCIATING);
+  return BrowserThread::PostTask(BrowserThread::DB, FROM_HERE,
+      base::Bind(&AutofillProfileDataTypeController::StartAssociation,
+                 this));
+}
+
+WeakHandle<SyncableService>
+    AutofillProfileDataTypeController::GetWeakHandleToSyncableService() const {
+  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::DB));
+  // TODO(isherman): This shouldn't create anything, but just get a weakptr to

[akalin, 2011/10/11 22:41:08]

This will most likely conflict with isherman's change to make the WebDataService
own the syncable service: http://codereview.chromium.org/8184001/

But I guess it would be something like:

return
MakeWeakHandle(web_data_service_->GetAutofillProfileSyncService()->AsWeakPtr());

[Nicolas Zea, 2011/10/12 04:24:19]

No longer doing weak handles and rebased to handle his changes.

+  // the AutofillProfileSyncableService. See crbug.com/96922.
+  return MakeWeakHandle(
+      profile_sync_factory()->CreateAutofillProfileSyncComponents(
+          profile_sync_service(),
+          web_data_service_->GetDatabase())->AsWeakPtr());
+}
+
+void AutofillProfileDataTypeController::StopModels() {
+  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
+  DCHECK(state() == STOPPING || state() == NOT_RUNNING);
+  notification_registrar_.RemoveAll();
+  personal_data_->RemoveObserver(this);
+}
+
 syncable::ModelType AutofillProfileDataTypeController::type() const {
   return syncable::AUTOFILL_PROFILE;
 }
 
-void AutofillProfileDataTypeController::CreateSyncComponents() {
-  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::DB));
-  ProfileSyncFactory::SyncComponents sync_components =
-      profile_sync_factory()->
-          CreateAutofillProfileSyncComponents(
-          profile_sync_service(),
-          web_data_service()->GetDatabase(),
-          this);
-  set_model_associator(sync_components.model_associator);
-  set_change_processor(sync_components.change_processor);
+browser_sync::ModelSafeGroup
+    AutofillProfileDataTypeController::model_safe_group() const {
+  return browser_sync::GROUP_DB;
 }
 
 void AutofillProfileDataTypeController::RecordUnrecoverableError(
     const tracked_objects::Location& from_here,
     const std::string& message) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::DB));
   UMA_HISTOGRAM_COUNTS("Sync.AutofillProfileRunFailures", 1);
 }
 
 void AutofillProfileDataTypeController::RecordAssociationTime(
     base::TimeDelta time) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::DB));
   UMA_HISTOGRAM_TIMES("Sync.AutofillProfileAssociationTime", time);
 }
 
 void AutofillProfileDataTypeController::RecordStartFailure(StartResult result) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
   UMA_HISTOGRAM_ENUMERATION("Sync.AutofillProfileStartFailures",
                             result,
                             MAX_START_RESULT);
 }
 
 }  // namepsace browser_sync