fix(ZenCompactMode): refactor URL height recalculation to use dedicated method in ZenVerticalTabsManager

src/browser/base/content/ZenUIManager.mjs

@@ -464,6 +464,19 @@ var gZenVerticalTabsManager = {
     }
   },
 
+  recalculateURLBarHeight() {
+    document.getElementById('urlbar').removeAttribute('--urlbar-height');
+    if (!this._hasSetSingleToolbar) {
+      document.getElementById('urlbar').style.setProperty('--urlbar-height', '32px');
+    } else {
+      try {
+        gURLBar.zenUpdateLayoutBreakout();
+      } catch (e) {
+        console.error(e);
+      }
+    }
+  },
+
   _updateEvent({ forCustomizableMode = false, dontRebuildAreas = false } = {}) {
     if (this._isUpdating) {
       return;
@@ -642,16 +655,7 @@ var gZenVerticalTabsManager = {
       }
 
       gZenCompactModeManager.updateCompactModeContext(isSingleToolbar);
-      document.getElementById('urlbar').removeAttribute('--urlbar-height');
-      if (!isSingleToolbar) {
-        document.getElementById('urlbar').style.setProperty('--urlbar-height', '32px');
-      } else {
-        try {
-          gURLBar.zenUpdateLayoutBreakout();
-        } catch (e) {
-          console.error(e);
-        }
-      }
+      this.recalculateURLBarHeight();
 
       // Always move the splitter next to the sidebar
       this.navigatorToolbox.after(document.getElementById('zen-sidebar-splitter'));

src/browser/base/zen-components/ZenCompactMode.mjs

@@ -97,7 +97,7 @@ var gZenCompactModeManager = {
   flashSidebarIfNecessary(aInstant = false) {
     // This function is called after exiting DOM fullscreen mode,
     // so we do a bit of a hack to re-calculate the URL height
-    gURLBar.zenUpdateLayoutBreakout();
+    gZenVerticalTabsManager.recalculateURLBarHeight();
     if (!aInstant && this.preference && lazyCompactMode.COMPACT_MODE_FLASH_ENABLED && !gZenGlanceManager._animating) {
       this.flashSidebar();
     }