chromeos: Add DriveFileSystem::Pin/Unpin

chrome/browser/chromeos/drive/fake_drive_file_system.h

 // 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.
 
 #ifndef CHROME_BROWSER_CHROMEOS_DRIVE_FAKE_DRIVE_FILE_SYSTEM_H_
 #define CHROME_BROWSER_CHROMEOS_DRIVE_FAKE_DRIVE_FILE_SYSTEM_H_
 
 #include <string>
 
 #include "base/basictypes.h"
@@ skipping 59 matching lines @@
   virtual void Remove(const base::FilePath& file_path,
                       bool is_recursive,
                       const FileOperationCallback& callback) OVERRIDE;
   virtual void CreateDirectory(const base::FilePath& directory_path,
                                bool is_exclusive,
                                bool is_recursive,
                                const FileOperationCallback& callback) OVERRIDE;
   virtual void CreateFile(const base::FilePath& file_path,
                           bool is_exclusive,
                           const FileOperationCallback& callback) OVERRIDE;
+  virtual void Pin(const base::FilePath& file_path,
+                   const FileOperationCallback& callback) OVERRIDE;
+  virtual void Unpin(const base::FilePath& file_path,
+                     const FileOperationCallback& callback) OVERRIDE;
   virtual void GetFileByPath(const base::FilePath& file_path,
                              const GetFileCallback& callback) OVERRIDE;
   virtual void GetFileByResourceId(
       const std::string& resource_id,
       const DriveClientContext& context,
       const GetFileCallback& get_file_callback,
       const google_apis::GetContentCallback& get_content_callback) OVERRIDE;
   virtual void GetFileContentByPath(
       const base::FilePath& file_path,
       const GetFileContentInitializedCallback& initialized_callback,
@@ skipping 106 matching lines @@
   // invalidate the weak pointers before any other members are destroyed.
   base::WeakPtrFactory<FakeDriveFileSystem> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(FakeDriveFileSystem);
 };
 
 }  // namespace test_util
 }  // namespace drive
 
 #endif  // CHROME_BROWSER_CHROMEOS_DRIVE_FAKE_DRIVE_FILE_SYSTEM_H_