Implement snapshotting for non-Drive non-local file systems.

chrome/browser/chromeos/extensions/file_manager/private_api_util.cc

 // Copyright 2013 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_manager/private_api_util.h"
 
 #include <string>
 
 #include "base/files/file_path.h"
 #include "base/message_loop/message_loop.h"
 #include "chrome/browser/chromeos/drive/drive.pb.h"
 #include "chrome/browser/chromeos/drive/drive_integration_service.h"
 #include "chrome/browser/chromeos/drive/file_errors.h"
 #include "chrome/browser/chromeos/drive/file_system_interface.h"
 #include "chrome/browser/chromeos/drive/file_system_util.h"
 #include "chrome/browser/chromeos/file_manager/app_id.h"
 #include "chrome/browser/chromeos/file_manager/fileapi_util.h"
 #include "chrome/browser/chromeos/file_manager/filesystem_api_util.h"
 #include "chrome/browser/chromeos/file_manager/path_util.h"
+#include "chrome/browser/chromeos/file_manager/snapshot_manager.h"
 #include "chrome/browser/chromeos/file_manager/volume_manager.h"
 #include "chrome/browser/chromeos/fileapi/file_system_backend.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/common/extensions/api/file_browser_private.h"
 #include "content/public/browser/child_process_security_policy.h"
 #include "ui/shell_dialogs/selected_file_info.h"
 #include "webkit/browser/fileapi/file_system_context.h"
 #include "webkit/browser/fileapi/file_system_url.h"
 
 namespace file_browser_private = extensions::api::file_browser_private;
@@ skipping 35 matching lines @@
     if (!file_system) {
       DLOG(ERROR) << "Drive file selected while disabled: " << path.value();
       callback.Run(base::FilePath());
       return;
     }
     file_system->GetFile(drive::util::ExtractDrivePath(path),
                          base::Bind(&OnDriveGetFile, path, callback));
     return;
   }
 
-  // TODO(kinaba) crbug.com/383207 implement this.
-  NOTREACHED();
-  callback.Run(base::FilePath());
+  VolumeManager::Get(profile)->snapshot_manager()->CreateManagedSnapshot(
+      path, callback);
 }
 
 // Gets a resolved local file path of a non native |path| for file saving.
 void GetFileNativeLocalPathForSaving(Profile* profile,
                                      const base::FilePath& path,
                                      const LocalPathCallback& callback) {
   if (drive::util::IsUnderDriveMountPoint(path)) {
     drive::FileSystemInterface* file_system =
         drive::util::GetFileSystemByProfile(profile);
     if (!file_system) {
@@ skipping 239 matching lines @@
 
 drive::EventLogger* GetLogger(Profile* profile) {
   drive::DriveIntegrationService* service =
       drive::DriveIntegrationServiceFactory::FindForProfileRegardlessOfStates(
           profile);
   return service ? service->event_logger() : NULL;
 }
 
 }  // namespace util
 }  // namespace file_manager