New FileSystemURL cracking

webkit/fileapi/isolated_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_FILEAPI_ISOLATED_CONTEXT_H_
 #define WEBKIT_FILEAPI_ISOLATED_CONTEXT_H_
 
 #include <map>
 #include <set>
 #include <string>
 #include <vector>
 
 #include "base/basictypes.h"
 #include "base/file_path.h"
 #include "base/lazy_instance.h"
 #include "base/memory/singleton.h"
 #include "base/synchronization/lock.h"
 #include "webkit/fileapi/file_system_types.h"
 #include "webkit/fileapi/mount_points.h"
 #include "webkit/storage/webkit_storage_export.h"
 
 namespace fileapi {
+class FileSystemURL;
+}
+
+namespace fileapi {
 
 // Manages isolated filesystem mount points which have no well-known names
 // and are identified by a string 'filesystem ID', which usually just looks
 // like random value.
 // This type of filesystem can be created on the fly and may go away when it has
 // no references from renderers.
 // Files in an isolated filesystem are registered with corresponding names and
 // identified by a filesystem URL like:
 //
 //   filesystem:<origin>/isolated/<filesystem_id>/<name>/relative/path
@@ skipping 58 matching lines @@
   // Registers a new isolated filesystem for a given |path| of filesystem
   // |type| filesystem and returns a new filesystem ID.
   // |path| must be an absolute path which has no parent references ('..').
   // If |register_name| is non-null and has non-empty string the path is
   // registered as the given |register_name|, otherwise it is populated
   // with the name internally assigned to the path.
   std::string RegisterFileSystemForPath(FileSystemType type,
                                         const FilePath& path,
                                         std::string* register_name);
 
-  // MountPoints override.
-  virtual bool RevokeFileSystem(const std::string& filesystem_id) OVERRIDE;
-  virtual bool GetRegisteredPath(const std::string& filesystem_id,
-                                 FilePath* path) const OVERRIDE;
-  virtual bool CrackVirtualPath(const FilePath& virtual_path,
-                                std::string* filesystem_id,
-                                FileSystemType* type,
-                                FilePath* path) const OVERRIDE;
-
   // Revokes all filesystem(s) registered for the given path.
   // This is assumed to be called when the registered path becomes
   // globally invalid, e.g. when a device for the path is detached.
   //
   // Note that this revokes the filesystem no matter how many references it has.
   // It is ok to call this for the path that has no associated filesystems.
   // Note that this only works for the filesystems registered by
   // |RegisterFileSystemForPath|.
   void RevokeFileSystemByPath(const FilePath& path);
 
   // Adds a reference to a filesystem specified by the given filesystem_id.
   void AddReference(const std::string& filesystem_id);
 
   // Removes a reference to a filesystem specified by the given filesystem_id.
   // If the reference count reaches 0 the isolated context gets destroyed.
   // It is OK to call this on the filesystem that has been already deleted
   // (e.g. by RevokeFileSystemByPath).
   void RemoveReference(const std::string& filesystem_id);
 
   // Returns a set of dragged MountPointInfos registered for the
   // |filesystem_id|.
   // The filesystem_id must be pointing to a dragged file system
   // (i.e. must be the one registered by RegisterDraggedFileSystem).
   // Returns false if the |filesystem_id| is not valid.
   bool GetDraggedFileInfo(const std::string& filesystem_id,
                           std::vector<MountPointInfo>* files) const;
 
+  // MountPoints overrides.
+  virtual bool HandlesFileSystemMountType(FileSystemType type) const OVERRIDE;
+  virtual bool RevokeFileSystem(const std::string& filesystem_id) OVERRIDE;
+  virtual bool GetRegisteredPath(const std::string& filesystem_id,
+                                 FilePath* path) const OVERRIDE;
+  virtual bool CrackVirtualPath(const FilePath& virtual_path,
+                                std::string* filesystem_id,
+                                FileSystemType* type,
+                                FilePath* path) const OVERRIDE;
+  virtual FileSystemURL CrackURL(const GURL& url) const OVERRIDE;
+  virtual FileSystemURL CreateCrackedFileSystemURL(
+      const GURL& origin,
+      FileSystemType type,
+      const FilePath& path) const OVERRIDE;
+
   // Returns the virtual root path that looks like /<filesystem_id>.
   FilePath CreateVirtualRootPath(const std::string& filesystem_id) const;
 
  private:
   friend struct base::DefaultLazyInstanceTraits<IsolatedContext>;
 
   // Represents each file system instance (defined in the .cc).
   class Instance;
 
   typedef std::map<std::string, Instance*> IDToInstance;
@@ skipping 17 matching lines @@
 
   IDToInstance instance_map_;
   PathToID path_to_id_map_;
 
   DISALLOW_COPY_AND_ASSIGN(IsolatedContext);
 };
 
 }  // namespace fileapi
 
 #endif  // WEBKIT_FILEAPI_ISOLATED_CONTEXT_H_