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..0f08c98388071ba61c2365a9beb24370ade08ef2 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 && (shortcutId == 'keyboardOverlayGoBack' ||

[Lei Zhang, 2016/08/03 23:03:43]

I'm not JS expert, so take this with a grain of salt, but do you need the
"shortcutId &&" check?

[afakhry, 2016/08/04 16:44:59]

I'm not a JS person either, but you were right, no need for that "shortcutId
&&". Done.

+                       shortcutId == 'keyboardOverlayGoForward')) {
+      // 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.
+      if (!loadTimeData.getBoolean('backspaceGoesBackFeatureEnabled'))

[Lei Zhang, 2016/08/03 23:03:43]

Tack this on to the if statement above?

[afakhry, 2016/08/04 16:44:59]

Done.

+        shortcutId = null;
+    }
+
     if (shortcutId) {
       classes.push('is-shortcut');
       classes.push('keyboard-overlay-shortcut-key-background');