Service Worker: Add ServiceWorkerContainer.getRegistrations() method.

content/browser/service_worker/service_worker_database.cc

 // Copyright 2014 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_database.h"
 
 #include "base/files/file_util.h"
 #include "base/location.h"
 #include "base/logging.h"
 #include "base/metrics/histogram.h"
@@ skipping 431 matching lines @@
 
     origins->insert(origin);
   }
 
   HandleReadResult(FROM_HERE, status);
   return status;
 }
 
 ServiceWorkerDatabase::Status ServiceWorkerDatabase::GetRegistrationsForOrigin(
     const GURL& origin,
-    std::vector<RegistrationData>* registrations) {
+    std::vector<RegistrationData>* registrations,
+    std::vector<std::vector<ResourceRecord>>* opt_resources_list) {
   DCHECK(sequence_checker_.CalledOnValidSequencedThread());
   DCHECK(registrations->empty());
 
   Status status = LazyOpen(false);
   if (IsNewOrNonexistentDatabase(status))
     return STATUS_OK;
   if (status != STATUS_OK)
     return status;
 
   std::string prefix = CreateRegistrationKeyPrefix(origin);
@@ skipping 10 matching lines @@
       break;
 
     RegistrationData registration;
     status = ParseRegistrationData(itr->value().ToString(), &registration);
     if (status != STATUS_OK) {
       HandleReadResult(FROM_HERE, status);
       registrations->clear();
       return status;
     }
     registrations->push_back(registration);
+
+    if (opt_resources_list) {
+      std::vector<ResourceRecord> resources;
+      status = ReadResourceRecords(registration.version_id, &resources);
+      if (status != STATUS_OK) {
+        HandleReadResult(FROM_HERE, status);

[falken, 2015/06/09 07:37:51]

Maybe we should do registrations->clear() here also, if this function returns
error probably the output args should be empty.

+        opt_resources_list->clear();
+        return status;
+      }
+      opt_resources_list->push_back(resources);
+    }
   }
 
   HandleReadResult(FROM_HERE, status);
   return status;
 }
 
 ServiceWorkerDatabase::Status ServiceWorkerDatabase::GetAllRegistrations(
     std::vector<RegistrationData>* registrations) {
   DCHECK(sequence_checker_.CalledOnValidSequencedThread());
   DCHECK(registrations->empty());
@@ skipping 235 matching lines @@
     return status;
   if (!origin.is_valid())
     return STATUS_ERROR_FAILED;
 
   leveldb::WriteBatch batch;
 
   // Remove |origin| from unique origins if a registration specified by
   // |registration_id| is the only one for |origin|.
   // TODO(nhiroki): Check the uniqueness by more efficient way.
   std::vector<RegistrationData> registrations;
-  status = GetRegistrationsForOrigin(origin, &registrations);
+  status = GetRegistrationsForOrigin(origin, &registrations, nullptr);
   if (status != STATUS_OK)
     return status;
 
   if (registrations.size() == 1 &&
       registrations[0].registration_id == registration_id) {
     batch.Delete(CreateUniqueOriginKey(origin));
   }
 
   // Delete a registration specified by |registration_id|.
   batch.Delete(CreateRegistrationKey(registration_id, origin));
@@ skipping 196 matching lines @@
   leveldb::WriteBatch batch;
 
   for (const GURL& origin : origins) {
     if (!origin.is_valid())
       return STATUS_ERROR_FAILED;
 
     // Delete from the unique origin list.
     batch.Delete(CreateUniqueOriginKey(origin));
 
     std::vector<RegistrationData> registrations;
-    status = GetRegistrationsForOrigin(origin, &registrations);
+    status = GetRegistrationsForOrigin(origin, &registrations, nullptr);
     if (status != STATUS_OK)
       return status;
 
     // Delete registrations, resource records and user data.
     for (const RegistrationData& data : registrations) {
       batch.Delete(CreateRegistrationKey(data.registration_id, origin));
       batch.Delete(CreateRegistrationIdToOriginKey(data.registration_id));
 
       status = DeleteResourceRecords(
           data.version_id, newly_purgeable_resources, &batch);
@@ skipping 500 matching lines @@
 
 void ServiceWorkerDatabase::HandleWriteResult(
     const tracked_objects::Location& from_here,
     Status status) {
   if (status != STATUS_OK)
     Disable(from_here, status);
   ServiceWorkerMetrics::CountWriteDatabaseResult(status);
 }
 
 }  // namespace content