Files.app: Add a drive sync error event to the fileBrowserPrivate API.

chrome/browser/chromeos/drive/file_system.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/drive/file_system.h"
 
 #include "base/bind.h"
 #include "base/file_util.h"
 #include "base/platform_file.h"
 #include "base/prefs/pref_service.h"
@@ skipping 801 matching lines @@
 
 void FileSystem::OnCacheFileUploadNeededByOperation(
     const std::string& local_id) {
   sync_client_->AddUploadTask(ClientContext(USER_INITIATED), local_id);
 }
 
 void FileSystem::OnEntryUpdatedByOperation(const std::string& local_id) {
   sync_client_->AddUpdateTask(local_id);
 }
 
+void FileSystem::OnDriveSyncError(file_system::DriveSyncErrorType type) {
+  FOR_EACH_OBSERVER(FileSystemObserver,
+                    observers_,
+                    OnDriveSyncError(type));
+}
+
 void FileSystem::OnDirectoryChanged(const base::FilePath& directory_path) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
 
   FOR_EACH_OBSERVER(FileSystemObserver, observers_,
                     OnDirectoryChanged(directory_path));
 }
 
 void FileSystem::OnLoadFromServerComplete() {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
 
@@ skipping 94 matching lines @@
                           OpenMode open_mode,
                           const std::string& mime_type,
                           const OpenFileCallback& callback) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
   DCHECK(!callback.is_null());
 
   open_file_operation_->OpenFile(file_path, open_mode, mime_type, callback);
 }
 
 }  // namespace drive