[Downloads] Handle externally deleted items

chrome/browser/android/download/download_manager_service.cc

Index: chrome/browser/android/download/download_manager_service.cc
diff --git a/chrome/browser/android/download/download_manager_service.cc b/chrome/browser/android/download/download_manager_service.cc
index 2fef219f51c5f74394f35e432bc8f93ad5448d79..7a19c4889f947fd57be4c3efd50413770b8957bb 100644
--- a/chrome/browser/android/download/download_manager_service.cc
+++ b/chrome/browser/android/download/download_manager_service.cc
@@ -150,13 +150,23 @@ void DownloadManagerService::GetAllDownloadsInternal(bool is_off_the_record) {
         ConvertUTF8ToJavaString(env, item->GetTargetFilePath().value()),
         ConvertUTF8ToJavaString(env, item->GetTabUrl().spec()),
         ConvertUTF8ToJavaString(env, item->GetMimeType()),
-        item->GetStartTime().ToJavaTime(), item->GetTotalBytes());
+        item->GetStartTime().ToJavaTime(), item->GetTotalBytes(),
+        item->GetFileExternallyRemoved());
   }
 
   Java_DownloadManagerService_onAllDownloadsRetrieved(
       env, java_ref_, j_download_item_list, is_off_the_record);
 }
 
+void DownloadManagerService::CheckForExternallyRemovedDownloads(
+    JNIEnv* env,
+    const JavaParamRef<jobject>& obj,
+    bool is_off_the_record) {
+  content::DownloadManager* manager = GetDownloadManager(is_off_the_record);
+  if (!manager)
+    return;
+  manager->CheckForHistoryFilesRemoval();
+}
 
 void DownloadManagerService::CancelDownload(
     JNIEnv* env,
@@ -235,7 +245,8 @@ void DownloadManagerService::OnDownloadUpdated(
       ConvertUTF8ToJavaString(env, item->GetMimeType()).obj(),
       item->GetStartTime().ToJavaTime(),
       item->GetTotalBytes(),
-      item->GetBrowserContext()->IsOffTheRecord());
+      item->GetBrowserContext()->IsOffTheRecord(),
+      item->GetFileExternallyRemoved());
 }
 
 void DownloadManagerService::OnDownloadRemoved(