Replace void* with int32 for passing download_id to SelectFileDialog::Listener.

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 "chrome/browser/profiles/profile.h"
@@ skipping 38 matching lines @@
     return FILE_PICKER_DIFFERENT_DIR;
   return FILE_PICKER_DIFFERENT_NAME;
 }
 
 }  // namespace
 
 DownloadFilePicker::DownloadFilePicker(
     DownloadManager* download_manager,
     WebContents* web_contents,
     const FilePath& suggested_path,
-    void* params)
+    int32 download_id)
     : download_manager_(download_manager),
+      download_id_(download_id),
       suggested_path_(suggested_path) {
   DCHECK(download_manager_);
   select_file_dialog_ = SelectFileDialog::Create(this);
   SelectFileDialog::FileTypeInfo file_type_info;
   FilePath::StringType extension = suggested_path.Extension();
   if (!extension.empty()) {
     extension.erase(extension.begin());  // drop the .
     file_type_info.extensions.resize(1);
     file_type_info.extensions[0].push_back(extension);
   }
   file_type_info.include_all_files = true;
   gfx::NativeWindow owning_window = web_contents ?
       platform_util::GetTopLevel(web_contents->GetNativeView()) : NULL;
 
   select_file_dialog_->SelectFile(SelectFileDialog::SELECT_SAVEAS_FILE,
                                   string16(),
                                   suggested_path,
                                   &file_type_info, 0, FILE_PATH_LITERAL(""),
-                                  web_contents, owning_window, params);
+                                  web_contents, owning_window, NULL);
 }
 
 DownloadFilePicker::~DownloadFilePicker() {
 }
 
 void DownloadFilePicker::ModelChanged(DownloadManager* manager) {
 }
 
 void DownloadFilePicker::ManagerGoingDown(DownloadManager* manager) {
   DCHECK_EQ(download_manager_, manager);
   download_manager_ = NULL;
 }
 
 void DownloadFilePicker::FileSelected(const FilePath& path,
                                       int index,
                                       void* params) {
   FilePickerResult result = ComparePaths(suggested_path_, path);
   RecordFilePickerResult(download_manager_, result);
   if (download_manager_)
-    download_manager_->FileSelected(path, params);
+    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(params);
+    download_manager_->FileSelectionCanceled(download_id_);
   delete this;
 }