FileAPI: Add WebFileSystem::resolveURL

public/platform/WebFileSystem.h

 /*
  * Copyright (C) 2010 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 48 matching lines @@
     };
 
     // Opens a FileSystem.
     // WebFileSystemCallbacks::didOpenFileSystem() must be called with
     // a name and root path for the requested FileSystem when the operation
     // is completed successfully. WebFileSystemCallbacks::didFail() must be
     // called otherwise. The create bool is for indicating whether or not to
     // create root path for file systems if it do not exist.
     virtual void openFileSystem(const WebURL& storagePartition, const WebFileSystemType, bool create, WebFileSystemCallbacks*) { WEBKIT_ASSERT_NOT_REACHED(); }
 
+    // TODO(nhiroki): writing comment.
+    virtual void resolveURL(const WebURL& completedURL, WebFileSystemCallbacks*) { WEBKIT_ASSERT_NOT_REACHED(); }
+
     // Deletes FileSystem.
     // WebFileSystemCallbacks::didSucceed() must be called when the operation
     // is completed successfully. WebFileSystemCallbacks::didFail() must be
     // called otherwise.
     // All in-flight operations and following operations may fail after the
     // FileSystem is deleted.
     virtual void deleteFileSystem(const WebURL& storagePartition, const WebFileSystemType, WebFileSystemCallbacks*) { }
 
     // Moves a file or directory at |srcPath| to |destPath|.
     // WebFileSystemCallbacks::didSucceed() must be called when the operation is completed successfully.
@@ skipping 78 matching lines @@
     // WebFileSystemCallbacks::didFail() must be called otherwise.
     virtual void createSnapshotFileAndReadMetadata(const WebURL& path, WebFileSystemCallbacks*) { WEBKIT_ASSERT_NOT_REACHED(); }
 
 protected:
     virtual ~WebFileSystem() { }
 };
 
 } // namespace WebKit
 
 #endif