Add a component updater for the CLD2 data file.

chrome/browser/component_updater/url_fetcher_downloader.cc

 // Copyright 2013 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/component_updater/url_fetcher_downloader.h"
 
+#include "base/logging.h"
 #include "chrome/browser/component_updater/component_updater_utils.h"
 #include "content/public/browser/browser_thread.h"
 #include "net/base/load_flags.h"
 #include "net/url_request/url_fetcher.h"
 #include "url/gurl.h"
 
 using content::BrowserThread;
 
 namespace component_updater {
 
@@ skipping 19 matching lines @@
                                              url,
                                              net::URLFetcher::GET,
                                              this));
   url_fetcher_->SetRequestContext(context_getter_);
   url_fetcher_->SetLoadFlags(net::LOAD_DO_NOT_SEND_COOKIES |
                              net::LOAD_DO_NOT_SAVE_COOKIES |
                              net::LOAD_DISABLE_CACHE);
   url_fetcher_->SetAutomaticallyRetryOn5xx(false);
   url_fetcher_->SaveResponseToTemporaryFile(task_runner_);
 
+  VLOG(1) << "Starting background download: " << url.spec();
   url_fetcher_->Start();
 
   download_start_time_ = base::Time::Now();
 
   downloaded_bytes_ = -1;
   total_bytes_ = -1;
 }
 
 void UrlFetcherDownloader::OnURLFetchComplete(const net::URLFetcher* source) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
@@ skipping 16 matching lines @@
   }
 
   DownloadMetrics download_metrics;
   download_metrics.url = url();
   download_metrics.downloader = DownloadMetrics::kUrlFetcher;
   download_metrics.error = fetch_error;
   download_metrics.bytes_downloaded = downloaded_bytes_;
   download_metrics.bytes_total = total_bytes_;
   download_metrics.download_time_ms = download_time.InMilliseconds();
 
+  base::FilePath local_path_;
+  source->GetResponseAsFilePath(false, &local_path_);
+  VLOG(1) << "Downloaded " << downloaded_bytes_ << " bytes in "
+      << download_time.InMilliseconds() << "ms from "
+      << source->GetURL().spec()
+      << " to " << local_path_.value();
   CrxDownloader::OnDownloadComplete(is_handled, result, download_metrics);
 }
 
 void UrlFetcherDownloader::OnURLFetchDownloadProgress(
     const net::URLFetcher* source,
     int64 current,
     int64 total) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
   downloaded_bytes_ = current;
   total_bytes_ = total;
 }
 
 }  // namespace component_updater