Try to bandaid leaks due to TabContentsWrapper not force-closing all InfoBarDelegates on shutdown...

chrome/browser/download/download_request_infobar_delegate_unittest.cc

 // Copyright (c) 2011 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 "base/memory/scoped_ptr.h"
 #include "chrome/browser/download/download_request_infobar_delegate.h"
 #include "chrome/browser/download/download_request_limiter.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 // MockTabDownloadState -------------------------------------------------------
@@ skipping 54 matching lines @@
   responded_ = true;
   accepted_ = true;
   static_cast<DownloadRequestInfoBarDelegate*>(infobar_.get())->set_host(NULL);
 }
 
 
 // Tests ----------------------------------------------------------------------
 
 TEST(DownloadRequestInfobarDelegate, AcceptTest) {
   MockTabDownloadState state;
-  state.infobar()->Accept();
+  if (state.infobar()->Accept())
+    state.close_infobar();
   EXPECT_TRUE(state.accepted());
 }
 
 TEST(DownloadRequestInfobarDelegate, CancelTest) {
   MockTabDownloadState state;
-  state.infobar()->Cancel();
+  if (state.infobar()->Cancel())
+    state.close_infobar();
   EXPECT_FALSE(state.accepted());
 }
 
 TEST(DownloadRequestInfobarDelegate, CloseTest) {
   MockTabDownloadState state;
   state.close_infobar();
   EXPECT_FALSE(state.accepted());
 }