linux_aura: Port GtkKeybindingsHandler to Aura.

content/common/edit_command.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 CONTENT_COMMON_EDIT_COMMAND_H_
-#define CONTENT_COMMON_EDIT_COMMAND_H_
-
-#include <string>
-#include <vector>
-
-namespace content {
-
-// Types related to sending edit commands to the renderer.
-struct EditCommand {
-  EditCommand() { }
-  EditCommand(const std::string& n, const std::string& v)
-      : name(n), value(v) {
-  }
-
-  std::string name;
-  std::string value;
-};
-
-typedef std::vector<EditCommand> EditCommands;
-
-}  // namespace content
-
-#endif  // CONTENT_COMMON_EDIT_COMMAND_H_