Fix iconCssClasses on URL bar

Addresses #9283

See: https://github.com/brave/browser-laptop/pull/9299/files/dc86dd7c0206d312302c44856e0b51213f0b9057#r121673448

Auditors:

Test Plan: n/a

app/renderer/components/navigation/urlBarIcon.js

@@ -25,19 +25,19 @@ class UrlBarIcon extends ImmutableComponent {
   }
   get iconCssClasses () {
     if (isPotentialPhishingUrl(this.props.location)) {
-      return ['fa-exclamation-triangle', 'insecure-color']
+      return ['fa-exclamation-triangle', css(styles.urlbarIcon_large, styles.urlbarIcon_siteInsecureColor)]
     } else if (this.isSearch) {
       return ['fa-search']
     } else if (this.isAboutPage && !this.props.titleMode) {
       return ['fa-list']
     } else if (this.props.isHTTPPage && !this.props.active) {
       // NOTE: EV style not approved yet; see discussion at https://github.com/brave/browser-laptop/issues/791
       if (this.props.isSecure === true) {
-        return ['fa-lock']
+        return ['fa-lock', css(styles.urlbarIcon_large)]
       } else if (this.props.isSecure === false || this.props.isSecure === 2) {
-        return ['fa-unlock', 'insecure-color']
+        return ['fa-unlock', css(styles.urlbarIcon_large, styles.urlbarIcon_siteInsecureColor)]
       } else if (this.props.isSecure === 1) {
-        return ['fa-unlock']
+        return ['fa-unlock', css(styles.urlbarIcon_large)]
       }
     }
     return []
@@ -70,12 +70,9 @@ class UrlBarIcon extends ImmutableComponent {
     // ref: urlbarIcon_relative
     const relativeIcon = this.isAboutPage
 
-    const insecure = isPotentialPhishingUrl(this.props.location) || (this.props.isHTTPPage && !this.props.active && (this.props.isSecure === false || this.props.isSecure === 2))
-    const large = isPotentialPhishingUrl(this.props.location) || (this.props.isHTTPPage && !this.props.active)
-
     const iconClasses = {
       fa: true,
-      [css(styles.urlbarIcon, this.props.titleMode && styles.urlbarIcon_titleMode, this.isSearch && styles.urlbarIcon_isSearch, relativeIcon && styles.urlbarIcon_relative, large && styles.urlbarIcon_large, insecure && styles.urlbarIcon_siteInsecureColor)]: true
+      [css(styles.urlbarIcon, this.props.titleMode && styles.urlbarIcon_titleMode, this.isSearch && styles.urlbarIcon_isSearch, relativeIcon && styles.urlbarIcon_relative)]: true
     }
     this.iconCssClasses.forEach((iconClass) => {
       iconClasses[iconClass] = true