[NOT FOR LANDING] Detailed loading traces

content/browser/download/save_file_resource_handler.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/save_file_resource_handler.h"
-
+#include "base/trace_event/trace_event.h"
 #include "base/bind.h"
 #include "base/logging.h"
 #include "base/message_loop/message_loop.h"
 #include "base/strings/string_number_conversions.h"
 #include "content/browser/download/save_file_manager.h"
 #include "content/public/browser/browser_thread.h"
 #include "net/base/io_buffer.h"
 #include "net/url_request/redirect_info.h"
 #include "net/url_request/url_request_status.h"
 
 namespace content {
 
 SaveFileResourceHandler::SaveFileResourceHandler(net::URLRequest* request,
                                                  SaveItemId save_item_id,
                                                  SavePackageId save_package_id,
                                                  int render_process_host_id,
                                                  int render_frame_routing_id,
                                                  const GURL& url,
                                                  SaveFileManager* manager)
     : ResourceHandler(request),
       save_item_id_(save_item_id),
       save_package_id_(save_package_id),
       render_process_id_(render_process_host_id),
       render_frame_routing_id_(render_frame_routing_id),
       url_(url),
       content_length_(0),
       save_manager_(manager) {}
 
 SaveFileResourceHandler::~SaveFileResourceHandler() {
+  TRACE_EVENT0("toplevel", "SaveFileResourceHandler::~SaveFileResourceHandler");
 }
 
 bool SaveFileResourceHandler::OnRequestRedirected(
     const net::RedirectInfo& redirect_info,
     ResourceResponse* response,
     bool* defer) {
   final_url_ = redirect_info.new_url;
   return true;
 }
 
@@ skipping 58 matching lines @@
 void SaveFileResourceHandler::OnDataDownloaded(int bytes_downloaded) {
   NOTREACHED();
 }
 
 void SaveFileResourceHandler::set_content_length(
     const std::string& content_length) {
   base::StringToInt64(content_length, &content_length_);
 }
 
 }  // namespace content