[NTP] Propagate OfflineId from C++ for Downloads.

chrome/browser/android/ntp/ntp_snippets_bridge.cc

Index: chrome/browser/android/ntp/ntp_snippets_bridge.cc
diff --git a/chrome/browser/android/ntp/ntp_snippets_bridge.cc b/chrome/browser/android/ntp/ntp_snippets_bridge.cc
index 7f03d7f224e8761dee9f3aaaa40116b60adf40e3..4c940a5a84b6f9b47414bea6eecc12cd7b9d1144 100644
--- a/chrome/browser/android/ntp/ntp_snippets_bridge.cc
+++ b/chrome/browser/android/ntp/ntp_snippets_bridge.cc
@@ -81,15 +81,20 @@ ScopedJavaLocalRef<jobject> ToJavaSuggestionList(
         static_cast<int>(info->card_layout()));
     if (suggestion.id().category().IsKnownCategory(
             KnownCategories::DOWNLOADS) &&
-        suggestion.download_suggestion_extra() != nullptr &&
-        suggestion.download_suggestion_extra()->is_download_asset) {
-      Java_SnippetsBridge_setDownloadAssetDataForLastSuggestion(
-          env, result,
-          ConvertUTF8ToJavaString(
-              env,
-              suggestion.download_suggestion_extra()->target_file_path.value()),
-          ConvertUTF8ToJavaString(
-              env, suggestion.download_suggestion_extra()->mime_type));
+        suggestion.download_suggestion_extra() != nullptr) {
+      if (suggestion.download_suggestion_extra()->is_download_asset) {
+        Java_SnippetsBridge_setDownloadAssetDataForLastSuggestion(
+            env, result,
+            ConvertUTF8ToJavaString(env, suggestion.download_suggestion_extra()
+                                             ->target_file_path.value()),
+            ConvertUTF8ToJavaString(
+                env, suggestion.download_suggestion_extra()->mime_type));
+      } else {
+        Java_SnippetsBridge_setDownloadOfflinePageDataForLastSuggestion(
+            env, result,
+            ConvertUTF8ToJavaString(
+                env, suggestion.download_suggestion_extra()->offline_page_id));
+      }
     }
     if (suggestion.id().category().IsKnownCategory(
             KnownCategories::RECENT_TABS) &&