[chrome/browser/download] Convert VLOGs to DVLOGs

chrome/browser/download/download_status_updater_win.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 "chrome/browser/download/download_status_updater.h"
 
 #include <shobjidl.h>
 #include <string>
 
 #include "base/logging.h"
@@ skipping 10 matching lines @@
                               bool progress_known,
                               float progress) {
   // Taskbar progress bar is only supported on Win7.
   if (base::win::GetVersion() < base::win::VERSION_WIN7)
     return;
 
   base::win::ScopedComPtr<ITaskbarList3> taskbar;
   HRESULT result = taskbar.CreateInstance(CLSID_TaskbarList, NULL,
                                           CLSCTX_INPROC_SERVER);
   if (FAILED(result)) {
-    VLOG(1) << "Failed creating a TaskbarList object: " << result;
+    DVLOG(1) << "Failed creating a TaskbarList object: " << result;
     return;
   }
 
   result = taskbar->HrInit();
   if (FAILED(result)) {
     LOG(ERROR) << "Failed initializing an ITaskbarList3 interface.";
     return;
   }
 
   // Iterate through all the browser windows, and draw the progress bar.
@@ skipping 16 matching lines @@
 
 void DownloadStatusUpdater::UpdateAppIconDownloadProgress(
     content::DownloadItem* download) {
 
   // Always update overall progress.
   float progress = 0;
   int download_count = 0;
   bool progress_known = GetProgress(&progress, &download_count);
   UpdateTaskbarProgressBar(download_count, progress_known, progress);
 }