[Sync] Add support for performing a GetKey on startup.

sync/engine/sync_scheduler_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/engine/sync_scheduler_impl.h"
 
 #include <algorithm>
 #include <cstring>
 
 #include "base/bind.h"
@@ skipping 47 matching lines @@
   }
 }
 
 bool IsActionableError(
     const SyncProtocolError& error) {
   return (error.action != UNKNOWN_ACTION);
 }
 }  // namespace
 
 ConfigurationParams::ConfigurationParams()
-    : source(GetUpdatesCallerInfo::UNKNOWN),
-      keystore_key_status(KEYSTORE_KEY_UNNECESSARY) {}
+    : source(GetUpdatesCallerInfo::UNKNOWN) {}
 ConfigurationParams::ConfigurationParams(
     const sync_pb::GetUpdatesCallerInfo::GetUpdatesSource& source,
     const ModelTypeSet& types_to_download,
     const ModelSafeRoutingInfo& routing_info,
-    KeystoreKeyStatus keystore_key_status,
     const base::Closure& ready_task)
     : source(source),
       types_to_download(types_to_download),
       routing_info(routing_info),
-      keystore_key_status(keystore_key_status),
       ready_task(ready_task) {
   DCHECK(!ready_task.is_null());
 }
 ConfigurationParams::~ConfigurationParams() {}
 
 SyncSchedulerImpl::DelayProvider::DelayProvider() {}
 SyncSchedulerImpl::DelayProvider::~DelayProvider() {}
 
 SyncSchedulerImpl::WaitInterval::WaitInterval()
     : mode(UNKNOWN),
@@ skipping 256 matching lines @@
   // crbug.com/133030
   ModelSafeRoutingInfo restricted_routes;
   std::vector<ModelSafeWorker*> restricted_workers;
   BuildModelSafeParams(params.types_to_download,
                        params.routing_info,
                        session_context_->workers(),
                        &restricted_routes,
                        &restricted_workers);
   session_context_->set_routing_info(params.routing_info);
 
-  if (params.keystore_key_status == ConfigurationParams::KEYSTORE_KEY_NEEDED) {
-    // TODO(zea): implement in such a way that we can handle failures and the
-    // subsequent retrys the scheduler might perform. See crbug.com/129665.
-    NOTIMPLEMENTED();
-  }
-
   // Only reconfigure if we have types to download.
   if (!params.types_to_download.Empty()) {
     DCHECK(!restricted_routes.empty());
     linked_ptr<SyncSession> session(new SyncSession(
         session_context_,
         this,
         SyncSourceInfo(params.source,
                        ModelSafeRoutingInfoToPayloadMap(
                            restricted_routes,
                            std::string())),
@@ skipping 784 matching lines @@
 
 #undef SDVLOG_LOC
 
 #undef SDVLOG
 
 #undef SLOG
 
 #undef ENUM_CASE
 
 }  // namespace syncer