Add test for TextEditCommandAuraLinux::GetCommandString.

ui/base/ime/text_edit_commands.h

 // Copyright 2016 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 UI_BASE_IME_TEXT_EDIT_COMMANDS_H_
 #define UI_BASE_IME_TEXT_EDIT_COMMANDS_H_
 
 namespace ui {
 
 // Text editing commands for use by ui::TextInputClient.
 enum class TextEditCommand {
-  DELETE_BACKWARD,
-  DELETE_FORWARD,
-  DELETE_TO_BEGINNING_OF_LINE,
-  DELETE_TO_BEGINNING_OF_PARAGRAPH,
-  DELETE_TO_END_OF_LINE,
-  DELETE_TO_END_OF_PARAGRAPH,
-  DELETE_WORD_BACKWARD,
-  DELETE_WORD_FORWARD,
-  MOVE_BACKWARD,
-  MOVE_BACKWARD_AND_MODIFY_SELECTION,
-  MOVE_DOWN,
-  MOVE_DOWN_AND_MODIFY_SELECTION,
-  MOVE_FORWARD,
-  MOVE_FORWARD_AND_MODIFY_SELECTION,
-  MOVE_LEFT,
-  MOVE_LEFT_AND_MODIFY_SELECTION,
-  MOVE_PAGE_DOWN,
-  MOVE_PAGE_DOWN_AND_MODIFY_SELECTION,
-  MOVE_PAGE_UP,
-  MOVE_PAGE_UP_AND_MODIFY_SELECTION,
-  MOVE_RIGHT,
-  MOVE_RIGHT_AND_MODIFY_SELECTION,
-  MOVE_TO_BEGINNING_OF_DOCUMENT,
-  MOVE_TO_BEGINNING_OF_DOCUMENT_AND_MODIFY_SELECTION,
-  MOVE_TO_BEGINNING_OF_LINE,
-  MOVE_TO_BEGINNING_OF_LINE_AND_MODIFY_SELECTION,
-  MOVE_TO_BEGINNING_OF_PARAGRAPH,
-  MOVE_TO_BEGINNING_OF_PARAGRAPH_AND_MODIFY_SELECTION,
-  MOVE_TO_END_OF_DOCUMENT,
-  MOVE_TO_END_OF_DOCUMENT_AND_MODIFY_SELECTION,
-  MOVE_TO_END_OF_LINE,
-  MOVE_TO_END_OF_LINE_AND_MODIFY_SELECTION,
-  MOVE_TO_END_OF_PARAGRAPH,
-  MOVE_TO_END_OF_PARAGRAPH_AND_MODIFY_SELECTION,
-  MOVE_UP,
-  MOVE_UP_AND_MODIFY_SELECTION,
-  MOVE_WORD_BACKWARD,
-  MOVE_WORD_BACKWARD_AND_MODIFY_SELECTION,
-  MOVE_WORD_FORWARD,
-  MOVE_WORD_FORWARD_AND_MODIFY_SELECTION,
-  MOVE_WORD_LEFT,
-  MOVE_WORD_LEFT_AND_MODIFY_SELECTION,
-  MOVE_WORD_RIGHT,
-  MOVE_WORD_RIGHT_AND_MODIFY_SELECTION,
-  UNDO,
-  REDO,
-  CUT,
-  COPY,
-  PASTE,
-  SELECT_ALL,
-  INSERT_TEXT,
-  SET_MARK,
-  UNSELECT,
-  INVALID_COMMAND,
+  INVALID_COMMAND = 0,
+  DELETE_BACKWARD = 1,
+  DELETE_FORWARD = 2,
+  DELETE_TO_BEGINNING_OF_LINE = 3,
+  DELETE_TO_BEGINNING_OF_PARAGRAPH = 4,
+  DELETE_TO_END_OF_LINE = 5,
+  DELETE_TO_END_OF_PARAGRAPH = 6,
+  DELETE_WORD_BACKWARD = 7,
+  DELETE_WORD_FORWARD = 8,
+  MOVE_BACKWARD = 9,
+  MOVE_BACKWARD_AND_MODIFY_SELECTION = 10,
+  MOVE_DOWN = 11,
+  MOVE_DOWN_AND_MODIFY_SELECTION = 12,
+  MOVE_FORWARD = 13,
+  MOVE_FORWARD_AND_MODIFY_SELECTION = 14,
+  MOVE_LEFT = 15,
+  MOVE_LEFT_AND_MODIFY_SELECTION = 16,
+  MOVE_PAGE_DOWN = 17,
+  MOVE_PAGE_DOWN_AND_MODIFY_SELECTION = 18,
+  MOVE_PAGE_UP = 19,
+  MOVE_PAGE_UP_AND_MODIFY_SELECTION = 20,
+  MOVE_RIGHT = 21,
+  MOVE_RIGHT_AND_MODIFY_SELECTION = 22,
+  MOVE_TO_BEGINNING_OF_DOCUMENT = 23,
+  MOVE_TO_BEGINNING_OF_DOCUMENT_AND_MODIFY_SELECTION = 24,
+  MOVE_TO_BEGINNING_OF_LINE = 25,
+  MOVE_TO_BEGINNING_OF_LINE_AND_MODIFY_SELECTION = 26,
+  MOVE_TO_BEGINNING_OF_PARAGRAPH = 27,
+  MOVE_TO_BEGINNING_OF_PARAGRAPH_AND_MODIFY_SELECTION = 28,
+  MOVE_TO_END_OF_DOCUMENT = 29,
+  MOVE_TO_END_OF_DOCUMENT_AND_MODIFY_SELECTION = 30,
+  MOVE_TO_END_OF_LINE = 31,
+  MOVE_TO_END_OF_LINE_AND_MODIFY_SELECTION = 32,
+  MOVE_TO_END_OF_PARAGRAPH = 33,
+  MOVE_TO_END_OF_PARAGRAPH_AND_MODIFY_SELECTION = 34,
+  MOVE_UP = 35,
+  MOVE_UP_AND_MODIFY_SELECTION = 36,
+  MOVE_WORD_BACKWARD = 37,
+  MOVE_WORD_BACKWARD_AND_MODIFY_SELECTION = 38,
+  MOVE_WORD_FORWARD = 39,
+  MOVE_WORD_FORWARD_AND_MODIFY_SELECTION = 40,
+  MOVE_WORD_LEFT = 41,
+  MOVE_WORD_LEFT_AND_MODIFY_SELECTION = 42,
+  MOVE_WORD_RIGHT = 43,
+  MOVE_WORD_RIGHT_AND_MODIFY_SELECTION = 44,
+  UNDO = 45,
+  REDO = 46,
+  CUT = 47,
+  COPY = 48,
+  PASTE = 49,
+  SELECT_ALL = 50,
+  INSERT_TEXT = 51,
+  SET_MARK = 52,
+  UNSELECT = 53,
+
+  // Add new commands above this line.
+  NUMBER_OF_COMMANDS,
 };
 
 }  // namespace ui
 
 #endif  // UI_BASE_IME_TEXT_EDIT_COMMANDS_H_