Mac: make save/open dialogs operate as tab-modal sheets....

chrome/browser/download/download_manager.cc

 // Copyright (c) 2006-2009 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_manager.h"
 
 #include "app/l10n_util.h"
 #include "base/file_util.h"
 #include "base/logging.h"
 #include "base/message_loop.h"
@@ skipping 661 matching lines @@
       select_file_dialog_ = SelectFileDialog::Create(this);
 
     TabContents* contents = tab_util::GetTabContentsByID(info->child_id,
                                                          info->render_view_id);
     SelectFileDialog::FileTypeInfo file_type_info;
     file_type_info.extensions.resize(1);
     file_type_info.extensions[0].push_back(info->suggested_path.Extension());
     if (!file_type_info.extensions[0][0].empty())
       file_type_info.extensions[0][0].erase(0, 1);  // drop the .
     file_type_info.include_all_files = true;
+#if defined(OS_MACOSX)
+    // If |contents| is NULL, file selection should theoretically run modeless.
+    // FIXME(viettrungluu@gmail.com): But we don't actually currently support
+    // modeless file selection dialogs on Mac. Does this ever happen? Should it?
+    // Better dcheck it.
+    DCHECK(contents);
+    select_file_dialog_->SelectFileInTab(SelectFileDialog::SELECT_SAVEAS_FILE,
+                                         string16(),
+                                         info->suggested_path,
+                                         &file_type_info,
+                                         0,
+                                         FILE_PATH_LITERAL(""),
+                                         contents,
+                                         info);
+#else
     gfx::NativeWindow owning_window =
-        contents ? platform_util::GetTopLevel(contents->GetNativeView()) : NULL;
+        contents ? platform_util::GetTopLevel(contents->GetNativeView()) : NULL
+
     select_file_dialog_->SelectFile(SelectFileDialog::SELECT_SAVEAS_FILE,
                                     string16(),
                                     info->suggested_path,
                                     &file_type_info, 0, FILE_PATH_LITERAL(""),
                                     owning_window, info);
+#endif
   } else {
     // No prompting for download, just continue with the suggested name.
     ContinueStartDownload(info, info->suggested_path);
   }
 }
 
 void DownloadManager::ContinueStartDownload(DownloadCreateInfo* info,
                                             const FilePath& target_path) {
   scoped_ptr<DownloadCreateInfo> infop(info);
   info->path = target_path;
@@ skipping 852 matching lines @@
 
   if (contents)
     contents->OnStartDownload(download);
 }
 
 // Clears the last download path, used to initialize "save as" dialogs.
 void DownloadManager::ClearLastDownloadPath() {
   last_download_path_ = FilePath();
 }