Unbreak tabs.onRemove extension API in face of fast tab closure

chrome/browser/ui/tabs/tab_strip_model.cc

 // Copyright (c) 2012 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/ui/tabs/tab_strip_model.h"
 
 #include <algorithm>
 #include <map>
 #include <string>
 
@@ skipping 252 matching lines @@
 
   WebContents* removed_contents = GetWebContentsAtImpl(index);
   bool was_selected = IsTabSelected(index);
   int next_selected_index = order_controller_->DetermineNewSelectedIndex(index);
   delete contents_data_[index];
   contents_data_.erase(contents_data_.begin() + index);
   ForgetOpenersAndGroupsReferencing(removed_contents);
   if (empty())
     closing_all_ = true;
   FOR_EACH_OBSERVER(TabStripModelObserver, observers_,
-                    TabDetachedAt(removed_contents, index));
+                    TabDetachedAt(removed_contents, index, closing_all_));
   if (empty()) {
     selection_model_.Clear();
     // TabDetachedAt() might unregister observers, so send |TabStripEmpty()| in
     // a second pass.
     FOR_EACH_OBSERVER(TabStripModelObserver, observers_, TabStripEmpty());
   } else {
     int old_active = active_index();
     selection_model_.DecrementFrom(index);
     ui::ListSelectionModel old_model;
     old_model.Copy(selection_model_);
@@ skipping 1001 matching lines @@
 void TabStripModel::ForgetOpenersAndGroupsReferencing(
     const WebContents* tab) {
   for (WebContentsDataVector::const_iterator i = contents_data_.begin();
        i != contents_data_.end(); ++i) {
     if ((*i)->group == tab)
       (*i)->group = NULL;
     if ((*i)->opener == tab)
       (*i)->opener = NULL;
   }
 }