[File Manager] Add/remove Google Drive folder in the open File Manager when Drive enabled/disabled …

chrome/browser/chromeos/extensions/file_browser_event_router.cc

 // Copyright (c) 2012 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/chromeos/extensions/file_browser_event_router.h"
 
 #include "base/bind.h"
 #include "base/json/json_writer.h"
 #include "base/message_loop.h"
 #include "base/stl_util.h"
@@ skipping 140 matching lines @@
   system_service->file_system()->AddObserver(this);
 
   chromeos::NetworkLibrary* network_library =
       chromeos::CrosLibrary::Get()->GetNetworkLibrary();
   if (network_library)
      network_library->AddNetworkManagerObserver(this);
 
   pref_change_registrar_->Init(profile_->GetPrefs());
   pref_change_registrar_->Add(prefs::kDisableGDataOverCellular, this);
   pref_change_registrar_->Add(prefs::kDisableGDataHostedFiles, this);
+  pref_change_registrar_->Add(prefs::kDisableGData, this);
 }
 
 // File watch setup routines.
 bool FileBrowserEventRouter::AddFileWatch(
     const FilePath& local_path,
     const FilePath& virtual_path,
     const std::string& extension_id) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::FILE));
 
   base::AutoLock lock(lock_);
@@ skipping 331 matching lines @@
   if (error_code == chromeos::MOUNT_ERROR_NONE ||
       mount_info.mount_condition) {
     // Convert mount point path to relative path with the external file system
     // exposed within File API.
     if (file_manager_util::ConvertFileToRelativeFileSystemPath(profile_,
             FilePath(mount_info.mount_path),
             &relative_mount_path)) {
       mount_info_value->SetString("mountPath",
                                   "/" + relative_mount_path.value());
       relative_mount_path_set = true;
+    } else {
+      LOG(ERROR) << "Mount path is not accessible: " << mount_info.mount_path;
+      mount_info_value->SetString("status",
+          MountErrorToString(chromeos::MOUNT_ERROR_PATH_UNMOUNTED));
     }
   }
 
   std::string args_json;
   base::JSONWriter::Write(&args, &args_json);
   profile_->GetExtensionEventRouter()->DispatchEventToRenderers(
       extension_event_names::kOnFileBrowserMountCompleted, args_json, NULL,
       GURL());
 
   // Do not attempt to open File Manager while the login is in progress or
@@ skipping 248 matching lines @@
   return scoped_refptr<RefcountedProfileKeyedService>(
       new FileBrowserEventRouter(profile));
 }
 
 bool FileBrowserEventRouterFactory::ServiceHasOwnInstanceInIncognito() {
   // Explicitly and always allow this router in guest login mode.   see
   // chrome/browser/profiles/profile_keyed_base_factory.h comment
   // for the details.
   return true;
 }