sql::MetaTable.next_download_id, DownloadManager::GetNextId()

chrome/browser/renderer_host/download_resource_handler.cc

 // Copyright (c) 2011 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/renderer_host/download_resource_handler.h"
 
 #include <string>
 
 #include "base/logging.h"
 #include "base/metrics/histogram.h"
@@ skipping 12 matching lines @@
 #include "net/base/io_buffer.h"
 #include "net/http/http_response_headers.h"
 #include "net/url_request/url_request_context.h"
 
 DownloadResourceHandler::DownloadResourceHandler(
     ResourceDispatcherHost* rdh,
     int render_process_host_id,
     int render_view_id,
     int request_id,
     const GURL& url,
+    DownloadId dl_id,
     DownloadFileManager* download_file_manager,
     net::URLRequest* request,
     bool save_as,
     const DownloadSaveInfo& save_info)
-    : download_id_(-1),
+    : download_id_(dl_id),
       global_id_(render_process_host_id, request_id),
       render_view_id_(render_view_id),
       content_length_(0),
       download_file_manager_(download_file_manager),
       request_(request),
       save_as_(save_as),
       save_info_(save_info),
       buffer_(new DownloadBuffer),
       rdh_(rdh),
       is_paused_(false) {
+  DCHECK(dl_id.IsValid());
   download_util::RecordDownloadCount(download_util::UNTHROTTLED_COUNT);
 }
 
 bool DownloadResourceHandler::OnUploadProgress(int request_id,
                                                uint64 position,
                                                uint64 size) {
   return true;
 }
 
 // Not needed, as this event handler ought to be the final resource.
 bool DownloadResourceHandler::OnRequestRedirected(int request_id,
                                                   const GURL& url,
                                                   ResourceResponse* response,
                                                   bool* defer) {
   return true;
 }
 
 // Send the download creation information to the download thread.
 bool DownloadResourceHandler::OnResponseStarted(int request_id,
                                                 ResourceResponse* response) {
+  DCHECK(download_id_.IsValid());
   VLOG(20) << __FUNCTION__ << "()" << DebugString()
            << " request_id = " << request_id;
   download_start_time_ = base::TimeTicks::Now();
   std::string content_disposition;
   request_->GetResponseHeaderByName("content-disposition",
                                     &content_disposition);
   set_content_disposition(content_disposition);
   set_content_length(response->response_head.content_length);
 
   const ResourceDispatcherHostRequestInfo* request_info =
     ResourceDispatcherHost::InfoForRequest(request_);
 
-  download_id_ = download_file_manager_->GetNextId();
-
   // Deleted in DownloadManager.
   DownloadCreateInfo* info = new DownloadCreateInfo;
   info->url_chain = request_->url_chain();
   info->referrer_url = GURL(request_->referrer());
   info->start_time = base::Time::Now();
   info->received_bytes = 0;
   info->total_bytes = content_length_;
   info->state = DownloadItem::IN_PROGRESS;
-  info->download_id = download_id_;
+  info->download_id = download_id_.local();
   info->has_user_gesture = request_info->has_user_gesture();
   info->request_handle = DownloadRequestHandle(rdh_,
                                                global_id_.child_id,
                                                render_view_id_,
                                                global_id_.request_id);
   info->content_disposition = content_disposition_;
   info->mime_type = response->response_head.mime_type;
   download_util::RecordDownloadMimeType(info->mime_type);
   // TODO(ahendrickson) -- Get the last modified time and etag, so we can
   // resume downloading.
@@ skipping 149 matching lines @@
                             " url_ = " "\"%s\""
                             " download_id_ = " "%d"
                             " global_id_ = {"
                             " child_id = " "%d"
                             " request_id = " "%d"
                             " }"
                             " render_view_id_ = " "%d"
                             " save_info_.file_path = \"%" PRFilePath "\""
                             " }",
                             request_->url().spec().c_str(),
-                            download_id_,
+                            download_id_.local(),
                             global_id_.child_id,
                             global_id_.request_id,
                             render_view_id_,
                             save_info_.file_path.value().c_str());
 }