reintroduce InterceptDownloadResourceThrottle for some OMA DRM downloads

chrome/browser/android/download/download_controller_base.cc

 // Copyright 2016 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_controller_base.h"
 #include "chrome/common/chrome_content_client.h"
 #include "content/public/browser/resource_request_info.h"
 #include "net/url_request/url_request.h"
 
 // static
 DownloadControllerBase* DownloadControllerBase::download_controller_ = nullptr;
 
 using content::ResourceRequestInfo;
 
-DownloadInfo::DownloadInfo(const net::URLRequest* request)
-    : has_user_gesture(false) {
+DownloadInfo::DownloadInfo(const net::URLRequest* request) {
   request->GetResponseHeaderByName("content-disposition", &content_disposition);
 
   if (request->response_headers())
     request->response_headers()->GetMimeType(&original_mime_type);
 
   request->extra_request_headers().GetHeader(
     net::HttpRequestHeaders::kUserAgent, &user_agent);
   if (user_agent.empty())
     user_agent = GetUserAgent();
   GURL referer_url(request->referrer());
   if (referer_url.is_valid())
     referer = referer_url.spec();
   if (!request->url_chain().empty()) {
     original_url = request->url_chain().front();
     url = request->url_chain().back();
   }
-
-  const ResourceRequestInfo* info = ResourceRequestInfo::ForRequest(request);
-  if (info)
-    has_user_gesture = info->HasUserGesture();
 }
 
 DownloadInfo::DownloadInfo(const DownloadInfo& other) = default;
 
 DownloadInfo::~DownloadInfo() {}