[BackgroundSync] Initial land of the BackgroundSyncManager

content/browser/service_worker/service_worker_storage.cc

 // Copyright 2013 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 "content/browser/service_worker/service_worker_storage.h"
 
 #include "base/bind_helpers.h"
 #include "base/files/file_util.h"
 #include "base/message_loop/message_loop.h"
 #include "base/sequenced_task_runner.h"
@@ skipping 755 matching lines @@
                  registration_id, key),
       base::Bind(&ServiceWorkerStorage::DidDeleteUserData,
                  weak_factory_.GetWeakPtr(),
                  callback));
 }
 
 void ServiceWorkerStorage::GetUserDataForAllRegistrations(
     const std::string& key,
     const ServiceWorkerStorage::GetUserDataForAllRegistrationsCallback&
         callback) {
-  DCHECK(state_ == INITIALIZED || state_ == DISABLED) << state_;
-  if (IsDisabled() || !context_) {
-    RunSoon(FROM_HERE,
-            base::Bind(callback, std::vector<std::pair<int64, std::string>>(),
-                       SERVICE_WORKER_ERROR_FAILED));
+  if (!LazyInitialize(
+          base::Bind(&ServiceWorkerStorage::GetUserDataForAllRegistrations,
+                     weak_factory_.GetWeakPtr(), key, callback))) {
+    if (state_ != INITIALIZING || !context_) {
+      RunSoon(FROM_HERE,
+              base::Bind(callback, std::vector<std::pair<int64, std::string>>(),
+                         SERVICE_WORKER_ERROR_FAILED));
+    }
     return;
   }
+  DCHECK_EQ(INITIALIZED, state_);
 
   if (key.empty()) {
     RunSoon(FROM_HERE,
             base::Bind(callback, std::vector<std::pair<int64, std::string>>(),
                        SERVICE_WORKER_ERROR_FAILED));
     return;
   }
 
   database_task_manager_->GetTaskRunner()->PostTask(
       FROM_HERE,
@@ skipping 984 matching lines @@
     // Give up the corruption recovery until the browser restarts.
     LOG(ERROR) << "Failed to delete the diskcache.";
     callback.Run(SERVICE_WORKER_ERROR_FAILED);
     return;
   }
   DVLOG(1) << "Deleted ServiceWorkerDiskCache successfully.";
   callback.Run(SERVICE_WORKER_OK);
 }
 
 }  // namespace content