Add support for constrained windows on os x, based on Avi's GTMWindowSheetController.

chrome/common/temp_scaffolding_stubs.cc

 // Copyright (c) 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/common/temp_scaffolding_stubs.h"
 
 #include "build/build_config.h"
 
 #include <vector>
 
@@ skipping 226 matching lines @@
 //--------------------------------------------------------------------------
 
 MemoryDetails::MemoryDetails() {
   NOTIMPLEMENTED();
 }
 
 void MemoryDetails::StartFetch() {
   NOTIMPLEMENTED();
 }
 
-#if defined(OS_MACOSX) || (defined(OS_LINUX) && defined(TOOLKIT_VIEWS))
+#if defined(OS_LINUX) && defined(TOOLKIT_VIEWS)
 // This should prompt the user if she wants to allow more than one concurrent
 // download per tab. Until this is in place, always allow multiple downloads.
 class DownloadRequestDialogDelegateStub
     : public DownloadRequestDialogDelegate {
  public:
   explicit DownloadRequestDialogDelegateStub(
     DownloadRequestManager::TabDownloadState* host)
-      : DownloadRequestDialogDelegate(host) { DoAccept(); }
+      : DownloadRequestDialogDelegate(host) { DoCancel(); }
 
   virtual void CloseWindow() {}
 };
 
 DownloadRequestDialogDelegate* DownloadRequestDialogDelegate::Create(
     TabContents* tab,
     DownloadRequestManager::TabDownloadState* host) {
   NOTIMPLEMENTED();
   return new DownloadRequestDialogDelegateStub(host);
 }
@@ skipping 147 matching lines @@
                           Handler* handler) {
   NOTIMPLEMENTED();
 }
 
 void BookmarkManager::SelectInTree(Profile* profile, const BookmarkNode* node) {
 }
 void BookmarkManager::Show(Profile* profile) {
 }
 
 #endif