If a download is initiated by download attribute, don't use stream viewer

chrome/browser/android/intercept_download_resource_throttle.cc

 // Copyright (c) 2012 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/intercept_download_resource_throttle.h"
 
 #include "base/feature_list.h"
 #include "base/metrics/histogram_macros.h"
 #include "chrome/browser/android/chrome_feature_list.h"
 #include "components/data_reduction_proxy/core/common/data_reduction_proxy_headers.h"
@@ skipping 34 matching lines @@
 
 // static
 bool InterceptDownloadResourceThrottle::IsDownloadInterceptionEnabled() {
   return base::FeatureList::IsEnabled(chrome::android::kSystemDownloadManager);
 }
 
 InterceptDownloadResourceThrottle::InterceptDownloadResourceThrottle(
     net::URLRequest* request,
     int render_process_id,
     int render_view_id,
-    int request_id)
+    int request_id,
+    bool must_download)
     : request_(request),
       render_process_id_(render_process_id),
       render_view_id_(render_view_id),
-      request_id_(request_id) {
+      request_id_(request_id),
+      must_download_(must_download) {
 }
 
 InterceptDownloadResourceThrottle::~InterceptDownloadResourceThrottle() {
 }
 
 void InterceptDownloadResourceThrottle::WillProcessResponse(bool* defer) {
   ProcessDownloadRequest();
 }
 
 const char* InterceptDownloadResourceThrottle::GetNameForLogging() const {
@@ skipping 42 matching lines @@
 
   // If the cookie is possibly channel-bound, don't pass it to android download
   // manager.
   // TODO(qinmin): add a test for this. http://crbug.com/430541.
   if (request_->ssl_info().channel_id_sent) {
     RecordInterceptFailureReasons(USE_CHANNEL_BOUND_COOKIES);
     return;
   }
 
   content::DownloadControllerAndroid::Get()->CreateGETDownload(
-      render_process_id_, render_view_id_, request_id_);
+      render_process_id_, render_view_id_, request_id_, must_download_);
   controller()->Cancel();
   RecordInterceptFailureReasons(NO_FAILURE);
 }
 
 }  // namespace chrome