GTTF: Enable glibcxx debug mode for Debug builds by default.

chrome/browser/ui/browser_iterator.cc

 // Copyright (c) 2013 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/browser_iterator.h"
 
 namespace chrome {
 
 BrowserIterator::BrowserIterator()
     : current_browser_list_(BrowserList::GetInstance(HOST_DESKTOP_TYPE_FIRST)),
       current_iterator_(current_browser_list_->begin()),
       next_desktop_type_(
           static_cast<HostDesktopType>(HOST_DESKTOP_TYPE_FIRST + 1)) {
   NextBrowserListIfAtEnd();
 }
 
+BrowserIterator::~BrowserIterator() {
+}
+
 void BrowserIterator::Next() {
   ++current_iterator_;
   NextBrowserListIfAtEnd();
 }
 
 void BrowserIterator::NextBrowserListIfAtEnd() {
   // Make sure either |current_iterator_| is valid or done().
   while (current_iterator_ == current_browser_list_->end() &&
          next_desktop_type_ < HOST_DESKTOP_TYPE_COUNT) {
     current_browser_list_ = BrowserList::GetInstance(next_desktop_type_);
     current_iterator_ = current_browser_list_->begin();
     next_desktop_type_ = static_cast<HostDesktopType>(next_desktop_type_ + 1);
   }
 }
 
 }  // namespace chrome