[Android] Fix stale verified publisher checkmark on tab switch (#34449)

The verified publisher checkmark could persist when switching tabs
because brave:// URLs were not treated as internal URLs and
OnPanelPublisherInfo silently dropped null publisher info without
notifying the Java layer.

- Treat brave:// URLs as internal alongside chrome:// so they
  clear the checkmark instead of querying getPublisherInfo.
- Notify Java with an empty publisher ID when OnPanelPublisherInfo
  receives null info, so the UI clears stale state.
- Reset the checkmark immediately in didSelectTab as a safety net
  before the async publisher query completes.

Resolves: https://github.com/brave/brave-browser/issues/53332

android/java/org/chromium/chrome/browser/BraveRewardsNativeWorker.java

@@ -16,6 +16,7 @@ import org.jni_zero.JNINamespace;
 import org.jni_zero.NativeMethods;
 import org.json.JSONException;
 
+import org.chromium.base.BraveUrlConstants;
 import org.chromium.brave_rewards.mojom.PublisherStatus;
 import org.chromium.chrome.browser.tab.Tab;
 import org.chromium.components.embedder_support.util.UrlConstants;
@@ -120,9 +121,14 @@ public class BraveRewardsNativeWorker {
     }
 
     public void onNotifyFrontTabUrlChanged(int tabId, String url) {
-        boolean chromeUrl = url.startsWith(UrlConstants.CHROME_SCHEME);
+        // Check both chrome:// and brave:// schemes. brave:// URLs (e.g.
+        // brave://version) are not recognized by the publisher lookup and
+        // would leave a stale verified-publisher checkmark from a previous tab.
+        boolean internalUrl =
+                url.startsWith(UrlConstants.CHROME_SCHEME)
+                        || url.startsWith(BraveUrlConstants.BRAVE_SCHEME);
         boolean newUrl = (mFrontTabUrl == null || !mFrontTabUrl.equals(url));
-        if (chromeUrl) {
+        if (internalUrl) {
             // Don't query 'GetPublisherInfo' and post response now.
             sHandler.post(
                     new Runnable() {

android/java/org/chromium/chrome/browser/toolbar/top/BraveToolbarLayoutImpl.java

@@ -618,6 +618,13 @@ public abstract class BraveToolbarLayoutImpl extends ToolbarLayout
                     @Override
                     public void didSelectTab(Tab tab, @TabSelectionType int type, int lastId) {
                         showYouTubePipIcon(tab);
+                        // Reset verified publisher checkmark immediately on tab
+                        // switch. The correct state will be restored asynchronously
+                        // by onFrontTabPublisherChanged once the publisher query
+                        // for the new tab completes.
+                        mIsPublisherVerified = false;
+                        mPublisherId = "";
+                        updateVerifiedPublisherMark();
                         if (mBraveRewardsNativeWorker != null && !tab.isIncognito()) {
                             mBraveRewardsNativeWorker.onNotifyFrontTabUrlChanged(
                                     tab.getId(), tab.getUrl().getSpec());

browser/brave_rewards/android/brave_rewards_native_worker.cc

@@ -256,12 +256,17 @@ void BraveRewardsNativeWorker::OnPanelPublisherInfo(
     const brave_rewards::mojom::Result result,
     const brave_rewards::mojom::PublisherInfo* info,
     uint64_t tabId) {
+  JNIEnv* env = base::android::AttachCurrentThread();
   if (!info) {
+    // Notify Java with an empty publisher ID so the UI clears any stale
+    // verified-publisher checkmark from a previously visited tab/site.
+    Java_BraveRewardsNativeWorker_onPublisherInfo(
+        env, weak_java_brave_rewards_native_worker_.get(env), tabId,
+        base::android::ConvertUTF8ToJavaString(env, ""));
     return;
   }
   brave_rewards::mojom::PublisherInfoPtr pi = info->Clone();
   map_publishers_info_[tabId] = std::move(pi);
-  JNIEnv* env = base::android::AttachCurrentThread();
   base::android::ScopedJavaLocalRef<jstring> res =
       base::android::ConvertUTF8ToJavaString(env, info->id);
   Java_BraveRewardsNativeWorker_onPublisherInfo(