Coverity: Initialize member variables.

chrome/browser/download/download_file_picker.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_file_picker.h"
 
 #include "base/metrics/histogram.h"
 #include "chrome/browser/download/download_prefs.h"
 #include "chrome/browser/platform_util.h"
 #include "content/public/browser/download_item.h"
@@ skipping 36 matching lines @@
                               const FilePath& actual_path) {
   if (suggested_path == actual_path)
     return FILE_PICKER_SAME;
   if (suggested_path.DirName() != actual_path.DirName())
     return FILE_PICKER_DIFFERENT_DIR;
   return FILE_PICKER_DIFFERENT_NAME;
 }
 
 }  // namespace
 
-DownloadFilePicker::DownloadFilePicker() {
+DownloadFilePicker::DownloadFilePicker() : download_id_(0) {
 }
 
 void DownloadFilePicker::Init(DownloadManager* download_manager,
                               DownloadItem* item) {
   download_manager_ = download_manager;
   download_id_ = item->GetId();
   InitSuggestedPath(item);
 
   DCHECK(download_manager_);
   select_file_dialog_ = SelectFileDialog::Create(this);
@@ skipping 37 matching lines @@
     download_manager_->FileSelected(path, download_id_);
   delete this;
 }
 
 void DownloadFilePicker::FileSelectionCanceled(void* params) {
   RecordFilePickerResult(download_manager_, FILE_PICKER_CANCEL);
   if (download_manager_)
     download_manager_->FileSelectionCanceled(download_id_);
   delete this;
 }