[Sync] Refactor sync manager into interface.

chrome/browser/sync/profile_sync_service.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/sync/profile_sync_service.h"
 
 #include <cstddef>
 #include <map>
 #include <set>
 #include <utility>
@@ skipping 41 matching lines @@
 #include "chrome/common/net/gaia/gaia_constants.h"
 #include "chrome/common/time_format.h"
 #include "chrome/common/url_constants.h"
 #include "content/public/browser/notification_details.h"
 #include "content/public/browser/notification_source.h"
 #include "grit/generated_resources.h"
 #include "net/cookies/cookie_monster.h"
 #include "sync/api/sync_error.h"
 #include "sync/internal_api/public/configure_reason.h"
 #include "sync/internal_api/public/util/experiments.h"
+#include "sync/internal_api/public/util/sync_string_conversions.h"
 #include "sync/js/js_arg_list.h"
 #include "sync/js/js_event_details.h"
 #include "sync/util/cryptographer.h"
 #include "ui/base/l10n/l10n_util.h"
 
 using browser_sync::ChangeProcessor;
 using browser_sync::DataTypeController;
 using browser_sync::DataTypeManager;
 using browser_sync::SyncBackendHost;
 using syncer::ModelType;
@@ skipping 273 matching lines @@
     new browser_sync::BackendUnrecoverableErrorHandler(
         MakeWeakHandle(weak_factory_.GetWeakPtr())));
 
   backend_->Initialize(
       this,
       MakeWeakHandle(sync_js_controller_.AsWeakPtr()),
       sync_service_url_,
       initial_types,
       credentials,
       delete_stale_data,
+      &sync_manager_factory_,
       backend_unrecoverable_error_handler_.get(),
       &browser_sync::ChromeReportUnrecoverableError);
 }
 
 void ProfileSyncService::CreateBackend() {
   backend_.reset(
       new SyncBackendHost(profile_->GetDebugName(),
                           profile_, sync_prefs_.AsWeakPtr(),
                           invalidator_storage_.AsWeakPtr()));
 }
@@ skipping 823 matching lines @@
     // We need a passphrase still. We don't bother to attempt to configure
     // until we receive an OnPassphraseAccepted (which triggers a configure).
     DVLOG(1) << "ProfileSyncService::ConfigureDataTypeManager bailing out "
              << "because a passphrase required";
     NotifyObservers();
     return;
   }
   syncer::ConfigureReason reason = syncer::CONFIGURE_REASON_UNKNOWN;
   if (!HasSyncSetupCompleted()) {
     reason = syncer::CONFIGURE_REASON_NEW_CLIENT;
-  } else if (restart == false ||
-             syncer::InitialSyncEndedForTypes(types, GetUserShare())) {
+  } else if (restart) {
+    // Datatype downloads on restart are generally due to newly supported
+    // datatypes (although it's also possible we're picking up where a failed
+    // previous configuration left off).
+    // TODO(sync): consider detecting configuration recovery and setting
+    // the reason here appropriately.
+    reason = syncer::CONFIGURE_REASON_NEWLY_ENABLED_DATA_TYPE;
+  } else {
+    // The user initiated a reconfiguration (either to add or remove types).
     reason = syncer::CONFIGURE_REASON_RECONFIGURATION;
-  } else {
-    DCHECK(restart);
-    reason = syncer::CONFIGURE_REASON_NEWLY_ENABLED_DATA_TYPE;
   }
-  DCHECK(reason != syncer::CONFIGURE_REASON_UNKNOWN);
 
   data_type_manager_->Configure(types, reason);
 }
 
 syncer::UserShare* ProfileSyncService::GetUserShare() const {
   if (backend_.get() && backend_initialized_) {
     return backend_->GetUserShare();
   }
   NOTREACHED();
   return NULL;
@@ skipping 506 matching lines @@
   // See http://stackoverflow.com/questions/6224121/is-new-this-myclass-undefined-behaviour-after-directly-calling-the-destru.
   ProfileSyncService* old_this = this;
   this->~ProfileSyncService();
   new(old_this) ProfileSyncService(
       new ProfileSyncComponentsFactoryImpl(profile,
                                            CommandLine::ForCurrentProcess()),
       profile,
       signin,
       behavior);
 }