Remove "Go Back/Forward" from keyboard overlay

chrome/browser/resources/chromeos/keyboard_overlay.js

Index: chrome/browser/resources/chromeos/keyboard_overlay.js
diff --git a/chrome/browser/resources/chromeos/keyboard_overlay.js b/chrome/browser/resources/chromeos/keyboard_overlay.js
index fca7f74ce737a2bd089cbb8e905ba5b5c478f46e..c7f767cafca8a67d306e383595b2b0fd684c95fd 100644
--- a/chrome/browser/resources/chromeos/keyboard_overlay.js
+++ b/chrome/browser/resources/chromeos/keyboard_overlay.js
@@ -555,6 +555,15 @@ function update(modifiers, normModifiers) {
 
     classes.push('keyboard-overlay-key-background');
 
+    if ((shortcutId == 'keyboardOverlayGoBack' ||
+         shortcutId == 'keyboardOverlayGoForward') &&
+         !loadTimeData.getBoolean('backspaceGoesBackFeatureEnabled')) {

[Lei Zhang, 2016/08/04 16:55:04]

This is indented 1 space too far. If the first eval is shorter, you wouldn't
write:

if (foo ||
     bar) {}

[afakhry, 2016/08/04 18:04:29]

Done.

+      // If the "backspace key goes back" experiment is not enabled, then we
+      // clear the shortcuts for Backspace and Shift+Backspace to go back or
+      // forward respectively.
+      shortcutId = null;
+    }
+
     if (shortcutId) {
       classes.push('is-shortcut');
       classes.push('keyboard-overlay-shortcut-key-background');