Implement a Mojo service for Background Fetch

content/browser/storage_partition_impl.cc

Index: content/browser/storage_partition_impl.cc
diff --git a/content/browser/storage_partition_impl.cc b/content/browser/storage_partition_impl.cc
index 95b3a95d9f6cf80d21592ddb2a0dd4ac238fd910..b84229dd504a1bd53397e255fe170a7bb243d0a3 100644
--- a/content/browser/storage_partition_impl.cc
+++ b/content/browser/storage_partition_impl.cc
@@ -398,6 +398,9 @@ StoragePartitionImpl::~StoragePartitionImpl() {
   if (GetPlatformNotificationContext())
     GetPlatformNotificationContext()->Shutdown();
 
+  if (GetBackgroundFetchContext())
+    GetBackgroundFetchContext()->Shutdown();
+
   if (GetBackgroundSyncContext())
     GetBackgroundSyncContext()->Shutdown();
 
@@ -489,6 +492,9 @@ std::unique_ptr<StoragePartitionImpl> StoragePartitionImpl::Create(
                                           partition->service_worker_context_);
   partition->platform_notification_context_->Initialize();
 
+  partition->background_fetch_context_ = new BackgroundFetchContext(
+      context, partition.get(), partition->service_worker_context_);
+
   partition->background_sync_context_ = new BackgroundSyncContext();
   partition->background_sync_context_->Init(partition->service_worker_context_);
 
@@ -566,6 +572,10 @@ StoragePartitionImpl::GetPlatformNotificationContext() {
   return platform_notification_context_.get();
 }
 
+BackgroundFetchContext* StoragePartitionImpl::GetBackgroundFetchContext() {
+  return background_fetch_context_.get();
+}
+
 BackgroundSyncContext* StoragePartitionImpl::GetBackgroundSyncContext() {
   return background_sync_context_.get();
 }