Settings: Fix a couple of ESLint violations.

Bug: 720034
Change-Id: Ibddd393abde847d06e3c82ab3c3d4be1d1d56526
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2478885
Auto-Submit: dpapad <dpapad@chromium.org>
Commit-Queue: Esmael Elmoslimany <aee@chromium.org>
Reviewed-by: Esmael Elmoslimany <aee@chromium.org>
Cr-Commit-Position: refs/heads/master@{#818124}

chrome/browser/resources/settings/controls/pref_control_behavior.js

@@ -40,7 +40,7 @@
         error += ' in ' + this.getRootNode().host.tagName;
         console.error(error);
       } else if (
-          this.pref.enforcement ==
+          this.pref.enforcement ===
           chrome.settingsPrivate.Enforcement.PARENT_SUPERVISED) {
         console.error('PARENT_SUPERVISED is not enforced by pref controls');
       }

chrome/browser/resources/settings/on_startup_page/startup_urls_page.js

@@ -115,7 +115,7 @@ Polymer({
    * @private
    */
   shouldAllowUrlsEdit_() {
-    return this.get('prefs.session.startup_urls.enforcement') !=
+    return this.get('prefs.session.startup_urls.enforcement') !==
         chrome.settingsPrivate.Enforcement.ENFORCED;
   },
 });