Revert of chromeos: Convert ash VPNDelegate interface to mojo

chrome/browser/ui/ash/vpn_list_forwarder.cc

Index: chrome/browser/ui/ash/vpn_list_forwarder.cc
diff --git a/chrome/browser/ui/ash/vpn_list_forwarder.cc b/chrome/browser/ui/ash/vpn_list_forwarder.cc
deleted file mode 100644
index abf0e41fdec2fc4271935bc56651581f3cdb6d58..0000000000000000000000000000000000000000
--- a/chrome/browser/ui/ash/vpn_list_forwarder.cc
+++ /dev/null
@@ -1,158 +0,0 @@
-// Copyright 2015 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 "chrome/browser/ui/ash/vpn_list_forwarder.h"
-
-#include "ash/public/interfaces/vpn_list.mojom.h"
-#include "base/bind.h"
-#include "base/location.h"
-#include "base/logging.h"
-#include "base/threading/thread_task_runner_handle.h"
-#include "chrome/browser/chrome_notification_types.h"
-#include "chrome/browser/chromeos/profiles/profile_helper.h"
-#include "chrome/browser/profiles/profile.h"
-#include "chrome/browser/ui/ash/ash_util.h"
-#include "components/user_manager/user.h"
-#include "components/user_manager/user_manager.h"
-#include "content/public/browser/notification_service.h"
-#include "content/public/browser/notification_source.h"
-#include "content/public/common/service_manager_connection.h"
-#include "extensions/browser/extension_registry.h"
-#include "extensions/common/extension.h"
-#include "extensions/common/extension_set.h"
-#include "extensions/common/permissions/api_permission.h"
-#include "extensions/common/permissions/permissions_data.h"
-#include "services/service_manager/public/cpp/connector.h"
-
-namespace {
-
-bool IsVPNProvider(const extensions::Extension* extension) {
-  return extension->permissions_data()->HasAPIPermission(
-      extensions::APIPermission::kVpnProvider);
-}
-
-Profile* GetProfileForPrimaryUser() {
-  const user_manager::User* const primary_user =
-      user_manager::UserManager::Get()->GetPrimaryUser();
-  if (!primary_user)
-    return nullptr;
-
-  return chromeos::ProfileHelper::Get()->GetProfileByUser(primary_user);
-}
-
-// Connects to the VpnList mojo interface in ash.
-ash::mojom::VpnListPtr ConnectToVpnList() {
-  ash::mojom::VpnListPtr vpn_list;
-  service_manager::Connector* connector =
-      content::ServiceManagerConnection::GetForProcess()->GetConnector();
-  // Under mash the VpnList interface is in the ash process. In classic ash
-  // we provide it to ourself.
-  if (chrome::IsRunningInMash())
-    connector->ConnectToInterface("ash", &vpn_list);
-  else
-    connector->ConnectToInterface("content_browser", &vpn_list);
-  return vpn_list;
-}
-
-}  // namespace
-
-VpnListForwarder::VpnListForwarder() : weak_factory_(this) {
-  if (user_manager::UserManager::Get()->GetPrimaryUser()) {
-    // If a user is logged in, start observing the primary user's extension
-    // registry immediately.
-    AttachToPrimaryUserExtensionRegistry();
-  } else {
-    // If no user is logged in, wait until the first user logs in (thus becoming
-    // the primary user) and a profile is created for that user.
-    registrar_.Add(this, chrome::NOTIFICATION_PROFILE_CREATED,
-                   content::NotificationService::AllSources());
-  }
-}
-
-VpnListForwarder::~VpnListForwarder() {
-  if (extension_registry_)
-    extension_registry_->RemoveObserver(this);
-}
-
-void VpnListForwarder::OnExtensionLoaded(
-    content::BrowserContext* browser_context,
-    const extensions::Extension* extension) {
-  if (IsVPNProvider(extension))
-    UpdateVPNProviders();
-}
-
-void VpnListForwarder::OnExtensionUnloaded(
-    content::BrowserContext* browser_context,
-    const extensions::Extension* extension,
-    extensions::UnloadedExtensionInfo::Reason reason) {
-  if (IsVPNProvider(extension))
-    UpdateVPNProviders();
-}
-
-void VpnListForwarder::OnShutdown(extensions::ExtensionRegistry* registry) {
-  DCHECK(extension_registry_);
-  extension_registry_->RemoveObserver(this);
-  extension_registry_ = nullptr;
-}
-
-void VpnListForwarder::Observe(int type,
-                               const content::NotificationSource& source,
-                               const content::NotificationDetails& details) {
-  DCHECK_EQ(chrome::NOTIFICATION_PROFILE_CREATED, type);
-  const Profile* const profile = content::Source<Profile>(source).ptr();
-  if (!chromeos::ProfileHelper::Get()->IsPrimaryProfile(profile)) {
-    // If the profile that was just created does not belong to the primary user
-    // (e.g. login profile), ignore it.
-    return;
-  }
-
-  // The first user logged in (thus becoming the primary user) and a profile was
-  // created for that user. Stop observing profile creation. Wait one message
-  // loop cycle to allow other code which observes the
-  // chrome::NOTIFICATION_PROFILE_CREATED notification to finish initializing
-  // the profile, then start observing the primary user's extension registry.
-  registrar_.RemoveAll();
-  base::ThreadTaskRunnerHandle::Get()->PostTask(
-      FROM_HERE,
-      base::Bind(&VpnListForwarder::AttachToPrimaryUserExtensionRegistry,
-                 weak_factory_.GetWeakPtr()));
-}
-
-void VpnListForwarder::UpdateVPNProviders() {
-  DCHECK(extension_registry_);
-
-  std::vector<ash::mojom::ThirdPartyVpnProviderPtr> third_party_providers;
-  for (const auto& extension : extension_registry_->enabled_extensions()) {
-    if (!IsVPNProvider(extension.get()))
-      continue;
-
-    ash::mojom::ThirdPartyVpnProviderPtr provider =
-        ash::mojom::ThirdPartyVpnProvider::New();
-    provider->name = extension->name();
-    provider->extension_id = extension->id();
-    third_party_providers.push_back(std::move(provider));
-  }
-
-  // Ash starts without any third-party providers. If we've never sent one then
-  // there's no need to send an empty list. This case commonly occurs on startup
-  // when the user has no third-party VPN extensions installed.
-  if (!sent_providers_ && third_party_providers.empty())
-    return;
-
-  // It's rare to install or uninstall VPN provider extensions, so don't bother
-  // caching the interface pointer between calls to this function.
-  ash::mojom::VpnListPtr vpn_list = ConnectToVpnList();
-  vpn_list->SetThirdPartyVpnProviders(std::move(third_party_providers));
-
-  sent_providers_ = true;
-}
-
-void VpnListForwarder::AttachToPrimaryUserExtensionRegistry() {
-  DCHECK(!extension_registry_);
-  extension_registry_ =
-      extensions::ExtensionRegistry::Get(GetProfileForPrimaryUser());
-  extension_registry_->AddObserver(this);
-
-  UpdateVPNProviders();
-}