[ew] Add basic classes.

webkit/browser/fileapi/file_system_context.h

 // 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.
 
 #ifndef WEBKIT_BROWSER_FILEAPI_FILE_SYSTEM_CONTEXT_H_
 #define WEBKIT_BROWSER_FILEAPI_FILE_SYSTEM_CONTEXT_H_
 
 #include <map>
 #include <string>
 #include <vector>
@@ skipping 47 matching lines @@
 class FileSystemFileUtil;
 class FileSystemOperation;
 class FileSystemOperationRunner;
 class FileSystemOptions;
 class FileSystemQuotaUtil;
 class FileSystemURL;
 class IsolatedFileSystemBackend;
 class MountPoints;
 class QuotaReservation;
 class SandboxFileSystemBackend;
+class WatchManager;
 
 struct DefaultContextDeleter;
 struct FileSystemInfo;
 
 // An auto mount handler will attempt to mount the file system requested in
 // |url_request|. If the URL is for this auto mount handler, it returns true
 // and calls |callback| when the attempt is complete. If the auto mounter
 // does not recognize the URL, it returns false and does not call |callback|.
 // Called on the IO thread.
 typedef base::Callback<bool(
@@ skipping 78 matching lines @@
   // then no validator is required.
   CopyOrMoveFileValidatorFactory* GetCopyOrMoveFileValidatorFactory(
       FileSystemType type, base::File::Error* error_code) const;
 
   // Returns the file system backend instance for the given |type|.
   // This may return NULL if it is given an invalid or unsupported filesystem
   // type.
   FileSystemBackend* GetFileSystemBackend(
       FileSystemType type) const;
 
+  // Returns the watcher manager for the given |type|.
+  // This may return NULL if the type does not support watching.
+  WatcherManager* GetWatcherManager(FileSystemType type) const;
+
   // Returns true for sandboxed filesystems. Currently this does
   // the same as GetQuotaUtil(type) != NULL. (In an assumption that
   // all sandboxed filesystems must cooperate with QuotaManager so that
   // they can get deleted)
   bool IsSandboxFileSystem(FileSystemType type) const;
 
   // Returns observers for the given filesystem type.
   const UpdateObserverList* GetUpdateObservers(FileSystemType type) const;
   const AccessObserverList* GetAccessObservers(FileSystemType type) const;
 
@@ skipping 237 matching lines @@
 
 struct DefaultContextDeleter {
   static void Destruct(const FileSystemContext* context) {
     context->DeleteOnCorrectThread();
   }
 };
 
 }  // namespace fileapi
 
 #endif  // WEBKIT_BROWSER_FILEAPI_FILE_SYSTEM_CONTEXT_H_