DevTools: restore shortcuts to switch devtool panel left/right

third_party/WebKit/Source/devtools/front_end/main/Main.js

 /*
  * Copyright (C) 2006, 2007, 2008 Apple Inc.  All rights reserved.
  * Copyright (C) 2007 Matt Lilek (pewtermoose@gmail.com).
  * Copyright (C) 2009 Joseph Pecoraro
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *
  * 1.  Redistributions of source code must retain the above copyright
@@ skipping 316 matching lines @@
 
   _registerShortcuts() {
     var shortcut = UI.KeyboardShortcut;
     var section = UI.shortcutsScreen.section(Common.UIString('All Panels'));
     var keys = [
       shortcut.makeDescriptor('[', shortcut.Modifiers.CtrlOrMeta),
       shortcut.makeDescriptor(']', shortcut.Modifiers.CtrlOrMeta)
     ];
     section.addRelatedKeys(keys, Common.UIString('Go to the panel to the left/right'));
 
-    keys = [
-      shortcut.makeDescriptor('[', shortcut.Modifiers.CtrlOrMeta | shortcut.Modifiers.Alt),
-      shortcut.makeDescriptor(']', shortcut.Modifiers.CtrlOrMeta | shortcut.Modifiers.Alt)
-    ];
-    section.addRelatedKeys(keys, Common.UIString('Go back/forward in panel history'));
-
     var toggleConsoleLabel = Common.UIString('Show console');
     section.addKey(shortcut.makeDescriptor(shortcut.Keys.Tilde, shortcut.Modifiers.Ctrl), toggleConsoleLabel);
     section.addKey(shortcut.makeDescriptor(shortcut.Keys.Esc), Common.UIString('Toggle drawer'));
     if (Components.dockController.canDock()) {
       section.addKey(
           shortcut.makeDescriptor('M', shortcut.Modifiers.CtrlOrMeta | shortcut.Modifiers.Shift),
           Common.UIString('Toggle device mode'));
       section.addKey(
           shortcut.makeDescriptor('D', shortcut.Modifiers.CtrlOrMeta | shortcut.Modifiers.Shift),
           Common.UIString('Toggle dock side'));
@@ skipping 625 matching lines @@
    * @override
    * @return {?Element}
    */
   settingElement() {
     return UI.SettingsUI.createSettingCheckbox(
         Common.UIString('Show rulers'), Common.moduleSetting('showMetricsRulers'));
   }
 };
 
 new Main.Main();