Fix AppInfoDialogBrowserTest.InvokeUi_default failure (#35115)

Brave's tab_data.cc override was incorrectly marking all UNLOADED
tabs as having discard status, including tabs that had never loaded
(e.g. during browser initialization). This triggered TabIcon to
attempt showing the IPH_DiscardRing promo before the browser's
user education interface was initialized, causing a LOG(ERROR)
and test failure on Windows ASAN builds.

The fix adds a WasDiscarded() check so only tabs that were actually
discarded get the discard status indicator, not tabs that simply
haven't loaded yet.

Resolves https://github.com/brave/brave-browser/issues/54037

chromium_src/chrome/browser/ui/tabs/tab_data.cc

@@ -101,8 +101,10 @@ TabData TabData::FromTabInterface(tabs::TabInterface* tab) {
     }
   }
 
-  // Show which tabs are unloaded.
-  if (!data.should_show_discard_status) {
+  // Show which tabs are unloaded due to being discarded. Only mark tabs that
+  // were actually discarded (WasDiscarded), not tabs that simply haven't loaded
+  // yet (e.g. during browser initialization).
+  if (!data.should_show_discard_status && contents->WasDiscarded()) {
     const auto loading_state =
         resource_coordinator::TabLoadTracker::Get()->GetLoadingState(contents);
     if (loading_state ==