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diff --git a/chromium/chrome/browser/resources/chromeos/chromevox/braille/braille_key_types.js b/chromium/chrome/browser/resources/chromeos/chromevox/braille/braille_key_types.js
deleted file mode 100644
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--- a/chromium/chrome/browser/resources/chromeos/chromevox/braille/braille_key_types.js
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@@ -1,131 +0,0 @@
-// Copyright 2014 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.
-
-/**
- * @fileoverview Braille command definitions.
- * These types are adapted from Chrome's private braille API.
- * They can be found in the Chrome source repo at:
- * src/chrome/common/extensions/api/braille_display_private.idl
- * We define them here since they don't actually exist as bindings under
- * chrome.brailleDisplayPrivate.*.
- */
-
-goog.provide('cvox.BrailleDisplayState');
-goog.provide('cvox.BrailleKeyCommand');
-goog.provide('cvox.BrailleKeyEvent');
-
-
-/**
- * The set of commands sent from a braille display.
- * @enum {string}
- */
-cvox.BrailleKeyCommand = {
- PAN_LEFT: 'pan_left',
- PAN_RIGHT: 'pan_right',
- LINE_UP: 'line_up',
- LINE_DOWN: 'line_down',
- TOP: 'top',
- BOTTOM: 'bottom',
- ROUTING: 'routing',
- SECONDARY_ROUTING: 'secondary_routing',
- DOTS: 'dots',
- STANDARD_KEY: 'standard_key'
-};
-
-
-/**
- * Represents a key event from a braille display.
- *
- * @typedef {{command: cvox.BrailleKeyCommand,
- * displayPosition: (undefined|number),
- * brailleDots: (undefined|number),
- * standardKeyCode: (undefined|string),
- * standardKeyChar: (undefined|string),
- * altKey: (undefined|boolean),
- * ctrlKey: (undefined|boolean),
- * shiftKey: (undefined|boolean)
- * }}
- * command The name of the command.
- * displayPosition The 0-based position relative to the start of the currently
- * displayed text. Used for commands that involve routing
- * keys or similar. The position is given in characters,
- * not braille cells.
- * brailleDots Dots that were pressed for braille input commands. Bit mask
- * where bit 0 represents dot 1 etc.
- * standardKeyCode DOM level 4 key code.
- * standardKeyChar DOM key event character.
- * altKey Whether the alt key was pressed.
- * ctrlKey Whether the control key was pressed.
- * shiftKey Whether the shift key was pressed.
- */
-cvox.BrailleKeyEvent = {};
-
-
-/**
- * Returns the numeric key code for a DOM level 4 key code string.
- * NOTE: Only the key codes produced by the brailleDisplayPrivate API are
- * supported.
- * @param {string} code DOM level 4 key code.
- * @return {number|undefined} The numeric key code, or {@code undefined}
- * if unknown.
- */
-cvox.BrailleKeyEvent.keyCodeToLegacyCode = function(code) {
- return cvox.BrailleKeyEvent.legacyKeyCodeMap_[code];
-};
-
-
-/**
- * Returns a char value appropriate for a synthezised key event for a given
- * key code.
- * @param {string} keyCode The DOM level 4 key code.
- * @return {number} Integral character code.
- */
-cvox.BrailleKeyEvent.keyCodeToCharValue = function(keyCode) {
- /** @const */
- var SPECIAL_CODES = {
- 'Backspace': 0x08,
- 'Tab': 0x09,
- 'Enter': 0x0A
- };
- // Note, the Chrome virtual keyboard falls back on the first character of the
- // key code if the key is not one of the above. Do the same here.
- return SPECIAL_CODES[keyCode] || keyCode.charCodeAt(0);
-};
-
-
-/**
- * Map from DOM level 4 key codes to legacy numeric key codes.
- * @private {Object<number>}
- */
-cvox.BrailleKeyEvent.legacyKeyCodeMap_ = {
- 'Backspace': 8,
- 'Tab': 9,
- 'Enter': 13,
- 'Escape': 27,
- 'Home': 36,
- 'ArrowLeft': 37,
- 'ArrowUp': 38,
- 'ArrowRight': 39,
- 'ArrowDown': 40,
- 'PageUp': 33,
- 'PageDown': 34,
- 'End': 35,
- 'Insert': 45,
- 'Delete': 46
-};
-
-// Add the F1 to F12 keys.
-(function() {
- for (var i = 0; i < 12; ++i) {
- cvox.BrailleKeyEvent.legacyKeyCodeMap_['F' + (i + 1)] = 112 + i;
- }
-})();
-
-
-/**
- * The state of a braille display as represented in the
- * chrome.brailleDisplayPrivate API.
- * @typedef {{available: boolean, textCellCount: (number|undefined)}}
- */
-cvox.BrailleDisplayState;