[Downloads] Handle externally deleted items

chrome/browser/android/download/download_manager_service.cc

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/android/download/download_manager_service.h"
 
 #include "base/android/jni_string.h"
 #include "base/location.h"
 #include "base/single_thread_task_runner.h"
 #include "base/threading/thread_task_runner_handle.h"
@@ skipping 132 matching lines @@
     if (!ShouldShowDownloadItem(item))
       continue;
 
     Java_DownloadManagerService_addDownloadItemToList(
         env, java_ref_, j_download_item_list,
         ConvertUTF8ToJavaString(env, item->GetGuid()),
         ConvertUTF8ToJavaString(env, item->GetFileNameToReportUser().value()),
         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,
     jobject obj,
     const JavaParamRef<jstring>& jdownload_guid,
     bool is_off_the_record,
     bool is_notification_dismissed) {
   std::string download_guid = ConvertJavaStringToUTF8(env, jdownload_guid);
   DownloadController::RecordDownloadCancelReason(
       is_notification_dismissed ?
@@ skipping 58 matching lines @@
       java_ref_.obj(),
       ConvertUTF8ToJavaString(env, item->GetGuid()).obj(),
       ConvertUTF8ToJavaString(
           env, item->GetFileNameToReportUser().value()).obj(),
       ConvertUTF8ToJavaString(
           env, item->GetTargetFilePath().value()).obj(),
       ConvertUTF8ToJavaString(env, item->GetTabUrl().spec()).obj(),
       ConvertUTF8ToJavaString(env, item->GetMimeType()).obj(),
       item->GetStartTime().ToJavaTime(),
       item->GetTotalBytes(),
-      item->GetBrowserContext()->IsOffTheRecord());
+      item->GetBrowserContext()->IsOffTheRecord(),
+      item->GetFileExternallyRemoved());
 }
 
 void DownloadManagerService::OnDownloadRemoved(
     content::DownloadManager* manager, content::DownloadItem* item) {
   if (java_ref_.is_null())
     return;
 
   JNIEnv* env = base::android::AttachCurrentThread();
   Java_DownloadManagerService_onDownloadItemRemoved(
       env,
@@ skipping 111 matching lines @@
     resume_callback_for_testing_.Run(false);
 }
 
 content::DownloadManager* DownloadManagerService::GetDownloadManager(
     bool is_off_the_record) {
   Profile* profile = ProfileManager::GetActiveUserProfile();
   if (is_off_the_record)
     profile = profile->GetOffTheRecordProfile();
   return content::BrowserContext::GetDownloadManager(profile);
 }