Bug 1567416 - Part 1: Fixing the issue that disabled tracking protection icon is not shown when TP is disabled for the given site. r=johannh

This patch fixes the CSS rule for displaying the disabled tracking
protection icon when TP is off.

Differential Revision: https://phabricator.services.mozilla.com/D38668

--HG--
extra : moz-landing-system : lando

browser/themes/shared/identity-block/identity-block.inc.css

@@ -259,7 +259,7 @@
   list-style-image: url(chrome://browser/skin/tracking-protection.svg);
 }
 
-#tracking-protection-icon-box[hasException] > #tracking-protection-icon {
+#urlbar[pageproxystate="valid"] > #tracking-protection-icon-container > #tracking-protection-icon-box[hasException] > #tracking-protection-icon {
   list-style-image: url(chrome://browser/skin/tracking-protection-disabled.svg);
 }