Adds the ability for save dialogs to take a default extension....

chrome/browser/web_contents.cc

 // Copyright (c) 2006-2008 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/web_contents.h"
 
 #include "base/command_line.h"
 #include "base/compiler_specific.h"
 #include "base/file_version_info.h"
 #include "base/process_util.h"
@@ skipping 1044 matching lines @@
     int current_index = controller()->GetLastCommittedEntryIndex();
     *back_list_count = current_index;
     *forward_list_count = controller()->GetEntryCount() - current_index - 1;
   }
 }
 
 void WebContents::RunFileChooser(const std::wstring& default_file) {
   HWND toplevel_hwnd = GetAncestor(GetContainerHWND(), GA_ROOT);
   if (!select_file_dialog_.get())
     select_file_dialog_ = SelectFileDialog::Create(this);
-  select_file_dialog_->SelectFile(SelectFileDialog::SELECT_OPEN_FILE, L"",
-                                  default_file, toplevel_hwnd, NULL);
+  select_file_dialog_->SelectFile(SelectFileDialog::SELECT_OPEN_FILE,
+                                  std::wstring(), default_file, std::wstring(),
+                                  std::wstring(), toplevel_hwnd, NULL);
 }
 
 void WebContents::RunJavaScriptMessage(
     const std::wstring& message,
     const std::wstring& default_prompt,
     const int flags,
     IPC::Message* reply_msg,
     bool* did_suppress_message) {
   // Suppress javascript messages when requested and when inside a constrained
   // popup window (because that activates them and breaks them out of the
@@ skipping 744 matching lines @@
     // The favicon url isn't valid. This means there really isn't a favicon,
     // or the favicon url wasn't obtained before the load started. This assumes
     // the later.
     // TODO(sky): Need a way to set the favicon that doesn't involve generating
     // its url.
     new_url->SetFavIconURL(TemplateURL::GenerateFaviconURL(params.referrer));
   }
   new_url->set_safe_for_autoreplace(true);
   url_model->Add(new_url);
 }