feat: [extensions] background pages (#21591)

shell/browser/extensions/electron_process_manager_delegate.cc

@@ -0,0 +1,40 @@
+// Copyright 2019 Slack Technologies, Inc. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+#include "base/debug/stack_trace.h"
+
+#include "shell/browser/extensions/electron_process_manager_delegate.h"
+
+#include "base/command_line.h"
+#include "base/logging.h"
+#include "base/one_shot_event.h"
+#include "build/build_config.h"
+#include "content/public/browser/notification_service.h"
+#include "extensions/browser/extension_system.h"
+#include "extensions/browser/process_manager.h"
+#include "extensions/browser/process_manager_factory.h"
+#include "extensions/common/extension.h"
+#include "extensions/common/permissions/permissions_data.h"
+
+namespace extensions {
+
+ElectronProcessManagerDelegate::ElectronProcessManagerDelegate() = default;
+ElectronProcessManagerDelegate::~ElectronProcessManagerDelegate() = default;
+
+bool ElectronProcessManagerDelegate::AreBackgroundPagesAllowedForContext(
+    content::BrowserContext* context) const {
+  return true;
+}
+
+bool ElectronProcessManagerDelegate::IsExtensionBackgroundPageAllowed(
+    content::BrowserContext* context,
+    const Extension& extension) const {
+  return true;
+}
+
+bool ElectronProcessManagerDelegate::DeferCreatingStartupBackgroundHosts(
+    content::BrowserContext* context) const {
+  return false;
+}
+
+}  // namespace extensions