chromeos: Add DriveFileSystem::Pin/Unpin

chrome/browser/chromeos/drive/fake_drive_file_system.cc

 // Copyright (c) 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/drive/fake_drive_file_system.h"
 
 #include "base/bind.h"
 #include "base/callback.h"
 #include "base/files/file_path.h"
 #include "base/logging.h"
@@ skipping 96 matching lines @@
     const FileOperationCallback& callback) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
 }
 
 void FakeDriveFileSystem::CreateFile(const base::FilePath& file_path,
                                      bool is_exclusive,
                                      const FileOperationCallback& callback) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
 }
 
+void FakeDriveFileSystem::Pin(const base::FilePath& file_path,
+                              const FileOperationCallback& callback) {
+  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
+}
+
+void FakeDriveFileSystem::Unpin(const base::FilePath& file_path,
+                                const FileOperationCallback& callback) {
+  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
+}
+
 void FakeDriveFileSystem::GetFileByPath(const base::FilePath& file_path,
                                         const GetFileCallback& callback) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
 }
 
 void FakeDriveFileSystem::GetFileByResourceId(
     const std::string& resource_id,
     const DriveClientContext& context,
     const GetFileCallback& get_file_callback,
     const google_apis::GetContentCallback& get_content_callback) {
@@ skipping 260 matching lines @@
       callback.Run(DRIVE_FILE_OK, entry.Pass());
       return;
     }
   }
 
   callback.Run(DRIVE_FILE_ERROR_NOT_FOUND, scoped_ptr<DriveEntryProto>());
 }
 
 }  // namespace test_util
 }  // namespace drive