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

chrome/browser/tab_contents/infobar_container.cc

Index: chrome/browser/tab_contents/infobar_container.cc
===================================================================
--- chrome/browser/tab_contents/infobar_container.cc	(revision 91189)
+++ chrome/browser/tab_contents/infobar_container.cc	(working copy)
@@ -112,6 +112,11 @@
   // this point |delegate_| may be shutting down, and it's at best unimportant
   // and at worst disastrous to call that.
   delegate_ = NULL;
+
+  // TODO(pkasting): Remove this once TabContentsWrapper calls CloseSoon().
+  for (size_t i = infobars_.size(); i > 0; --i)
+    infobars_[i]->CloseSoon();
+
   ChangeTabContents(NULL);
 }