Revert 127833 - Re-land alexbost's experimental offscreenTabs API.

chrome/browser/extensions/api/offscreen_tabs/offscreen_tabs_constants.h

Index: chrome/browser/extensions/api/offscreen_tabs/offscreen_tabs_constants.h
===================================================================
--- chrome/browser/extensions/api/offscreen_tabs/offscreen_tabs_constants.h	(revision 127860)
+++ chrome/browser/extensions/api/offscreen_tabs/offscreen_tabs_constants.h	(working copy)
@@ -1,57 +0,0 @@
-// 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.
-
-// Constants used for the Offscreen Tabs API.
-
-#ifndef CHROME_BROWSER_EXTENSIONS_API_OFFSCREEN_TABS_OFFSCREEN_TABS_CONSTANTS_H_
-#define CHROME_BROWSER_EXTENSIONS_API_OFFSCREEN_TABS_OFFSCREEN_TABS_CONSTANTS_H_
-#pragma once
-
-namespace extensions {
-namespace offscreen_tabs_constants {
-
-// Input event keys.
-extern const char kEventTypeKey[];
-extern const char kEventAltKeyKey[];
-extern const char kEventCtrlKeyKey[];
-extern const char kEventMetaKeyKey[];
-extern const char kEventShiftKeyKey[];
-
-// Mouse event keys.
-extern const char kMouseEventTypeKey[];
-extern const char kMouseEventButtonKey[];
-extern const char kMouseEventWheelDeltaXKey[];
-extern const char kMouseEventWheelDeltaYKey[];
-
-// Mouse event values.
-extern const char kMouseEventTypeValueMousedown[];
-extern const char kMouseEventTypeValueMouseup[];
-extern const char kMouseEventTypeValueClick[];
-extern const char kMouseEventTypeValueMousemove[];
-extern const char kMouseEventTypeValueMousewheel[];
-extern const int kMouseEventButtonValueLeft;
-extern const int kMouseEventButtonValueMiddle;
-extern const int kMouseEventButtonValueRight;
-
-// Keyboard event keys.
-extern const char kKeyboardEventTypeKey[];
-extern const char kKeyboardEventCharCodeKey[];
-extern const char kKeyboardEventKeyCodeKey[];
-
-// Keyboard event values.
-extern const char kKeyboardEventTypeValueKeypress[];
-extern const char kKeyboardEventTypeValueKeydown[];
-extern const char kKeyboardEventTypeValueKeyup[];
-
-// Errors.
-extern const char kCurrentTabNotFound[];
-extern const char kInvalidKeyboardEventObjectError[];
-extern const char kInvalidMouseEventObjectError[];
-extern const char kNoMouseCoordinatesError[];
-extern const char kOffscreenTabNotFoundError[];
-
-}  // namespace offscreen_tabs_constants
-}  // namespace extensions
-
-#endif  // CHROME_BROWSER_EXTENSIONS_API_OFFSCREEN_TABS_OFFSCREEN_TABS_CONSTANTS_H_