Adds some debugging code in hopes of identifying a crasher.

content/browser/tab_contents/tab_contents_delegate.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 "content/browser/tab_contents/tab_contents_delegate.h"
 
 #include "base/compiler_specific.h"
 #include "base/logging.h"
 #include "base/memory/singleton.h"
 #include "content/browser/javascript_dialogs.h"
 #include "content/browser/tab_contents/tab_contents.h"
 #include "content/public/browser/intents_host.h"
+#include "content/public/browser/notification_service.h"
+#include "content/public/browser/notification_types.h"
 #include "content/public/common/url_constants.h"
 #include "ui/gfx/rect.h"
 #include "webkit/glue/web_intent_data.h"
 
 TabContentsDelegate::TabContentsDelegate() {
 }
 
 TabContents* TabContentsDelegate::OpenURLFromTab(TabContents* source,
                                                  const OpenURLParams& params) {
   return NULL;
@@ skipping 307 matching lines @@
 
 void TabContentsDelegate::RequestToLockMouse(TabContents* tab) {
 }
 
 TabContentsDelegate::~TabContentsDelegate() {
   while (!attached_contents_.empty()) {
     TabContents* tab_contents = *attached_contents_.begin();
     tab_contents->set_delegate(NULL);
   }
   DCHECK(attached_contents_.empty());
+  content::NotificationService::current()->Notify(
+      content::NOTIFICATION_TAB_CONTENTS_DELEGATE_DESTROYED,
+      content::Source<TabContentsDelegate>(this),
+      content::NotificationService::NoDetails());
 }
 
 void TabContentsDelegate::Attach(TabContents* tab_contents) {
   DCHECK(attached_contents_.find(tab_contents) == attached_contents_.end());
   attached_contents_.insert(tab_contents);
 }
 
 void TabContentsDelegate::Detach(TabContents* tab_contents) {
   DCHECK(attached_contents_.find(tab_contents) != attached_contents_.end());
   attached_contents_.erase(tab_contents);
 }
 
 void TabContentsDelegate::LostMouseLock() {
 }