chrome: Cleanup class/struct forward declarations

chrome/browser/chromeos/extensions/file_manager/file_browser_handler_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.
 
 // File contains the fileBrowserHandlerInternal.selectFile extension function.
 // The function prompts user to select a file path to be used by the caller. It
 // will fail if it isn't invoked by a user gesture (e.g. a mouse click or a
 // keyboard key press).
 // Note that the target file is never actually created by this function, even
 // if the selected path doesn't exist.
 
 #ifndef CHROME_BROWSER_CHROMEOS_EXTENSIONS_FILE_MANAGER_FILE_BROWSER_HANDLER_API_H_
 #define CHROME_BROWSER_CHROMEOS_EXTENSIONS_FILE_MANAGER_FILE_BROWSER_HANDLER_API_H_
 
 #include <string>
 #include <vector>
 
 #include "base/files/file_path.h"
 #include "chrome/browser/extensions/chrome_extension_function.h"
 
 class Browser;
 class FileBrowserHandlerInternalSelectFileFunction;
 
 namespace file_manager {
 
 namespace util {
 struct EntryDefinition;
-struct FileDefinition;
 }
 
 // Interface that is used by FileBrowserHandlerInternalSelectFileFunction to
 // select the file path that should be reported back to the extension function
 // caller.  Nobody will take the ownership of the interface implementation, so
 // it should delete itself once it's done.
 class FileSelector {
  public:
   virtual ~FileSelector() {}
 
@@ skipping 98 matching lines @@
 
   // List of permissions and paths that have to be granted for the selected
   // files.
   std::vector<std::pair<base::FilePath, int> > permissions_to_grant_;
 
   DECLARE_EXTENSION_FUNCTION("fileBrowserHandlerInternal.selectFile",
                              FILEBROWSERHANDLERINTERNAL_SELECTFILE)
 };
 
 #endif  // CHROME_BROWSER_CHROMEOS_EXTENSIONS_FILE_MANAGER_FILE_BROWSER_HANDLER_API_H_