Media Galleries: Prune uninteresting folders when scanning.

chrome/browser/extensions/api/file_system/file_system_api.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 CHROME_BROWSER_EXTENSIONS_API_FILE_SYSTEM_FILE_SYSTEM_API_H_
 #define CHROME_BROWSER_EXTENSIONS_API_FILE_SYSTEM_FILE_SYSTEM_API_H_
 
+#include <vector>
+
+#include "base/files/file_path.h"
 #include "chrome/browser/extensions/chrome_extension_function.h"
 #include "chrome/common/extensions/api/file_system.h"
 #include "ui/shell_dialogs/select_file_dialog.h"
 
-namespace base {
-class FilePath;
-}
-
 namespace extensions {
 class ExtensionPrefs;
 
 namespace file_system_api {
 
 // Methods to get and set the path of the directory containing the last file
 // chosen by the user in response to a chrome.fileSystem.chooseEntry() call for
 // the given extension.
 
 // Returns an empty path on failure.
 base::FilePath GetLastChooseEntryDirectory(const ExtensionPrefs* prefs,
                                            const std::string& extension_id);
 
 void SetLastChooseEntryDirectory(ExtensionPrefs* prefs,
                                  const std::string& extension_id,
                                  const base::FilePath& path);
 
+std::vector<base::FilePath> GetGrayListedDirectories();
+
 }  // namespace file_system_api
 
 class FileSystemGetDisplayPathFunction : public ChromeSyncExtensionFunction {
  public:
   DECLARE_EXTENSION_FUNCTION("fileSystem.getDisplayPath",
                              FILESYSTEM_GETDISPLAYPATH)
 
  protected:
   virtual ~FileSystemGetDisplayPathFunction() {}
   virtual bool RunImpl() OVERRIDE;
@@ skipping 162 matching lines @@
   DECLARE_EXTENSION_FUNCTION("fileSystem.restoreEntry", FILESYSTEM_RESTOREENTRY)
 
  protected:
   virtual ~FileSystemRestoreEntryFunction() {}
   virtual bool RunImpl() OVERRIDE;
 };
 
 }  // namespace extensions
 
 #endif  // CHROME_BROWSER_EXTENSIONS_API_FILE_SYSTEM_FILE_SYSTEM_API_H_