Don't cancel download when dismissing the notification

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/strings/string_number_conversions.h"
@@ skipping 241 matching lines @@
 
   content::DownloadItem* item = manager->GetDownloadByGuid(download_guid);
   if (item)
     item->SetLastAccessTime(base::Time::Now());
 }
 
 void DownloadManagerService::CancelDownload(
     JNIEnv* env,
     jobject obj,
     const JavaParamRef<jstring>& jdownload_guid,
-    bool is_off_the_record,
-    bool is_notification_dismissed) {
+    bool is_off_the_record) {
   std::string download_guid = ConvertJavaStringToUTF8(env, jdownload_guid);
   DownloadController::RecordDownloadCancelReason(
-      is_notification_dismissed ?
-          DownloadController::CANCEL_REASON_NOTIFICATION_DISMISSED :
-          DownloadController::CANCEL_REASON_ACTION_BUTTON);
+      DownloadController::CANCEL_REASON_ACTION_BUTTON);
   if (is_history_query_complete_ || is_off_the_record)
     CancelDownloadInternal(download_guid, is_off_the_record);
   else
     EnqueueDownloadAction(download_guid, CANCEL);
 }
 
 void DownloadManagerService::OnHistoryQueryComplete() {
   is_history_query_complete_ = true;
   for (auto iter = pending_actions_.begin(); iter != pending_actions_.end();
        ++iter) {
@@ skipping 198 matching lines @@
       chrome::android::kDownloadAutoResumptionThrottling,
       kAutoResumptionLimitVariation);
   int auto_resumption_limit;
   if (!variation.empty() &&
       base::StringToInt(variation, &auto_resumption_limit)) {
     return auto_resumption_limit;
   }
 
   return kDefaultAutoResumptionLimit;
 }