Simplify DownloadRequestHandle by using WebContentsGetter

content/browser/download/download_create_info.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 "content/browser/download/download_create_info.h"
 
 #include <string>
 
 #include "base/format_macros.h"
 #include "base/strings/stringprintf.h"
@@ skipping 12 matching lines @@
       save_info(std::move(save_info)),
       request_bound_net_log(bound_net_log) {}
 
 DownloadCreateInfo::DownloadCreateInfo()
     : DownloadCreateInfo(base::Time(),
                          net::BoundNetLog(),
                          make_scoped_ptr(new DownloadSaveInfo)) {}
 
 DownloadCreateInfo::~DownloadCreateInfo() {}
 
-std::string DownloadCreateInfo::DebugString() const {
-  return base::StringPrintf(
-      "{"
-      " download_id = %u"
-      " url = \"%s\""
-      " request_handle = %s"
-      " total_bytes = %" PRId64 " }",
-      download_id, url().spec().c_str(), request_handle->DebugString().c_str(),
-      total_bytes);
-}
-
 const GURL& DownloadCreateInfo::url() const {
   return url_chain.empty() ? GURL::EmptyGURL() : url_chain.back();
 }
 
 }  // namespace content