[CleanUp] Use base::STLSetDifference in place of std::set_difference

chrome/browser/ui/views/tabs/tab_strip.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/views/tabs/tab_strip.h"
 
 #if defined(OS_WIN)
 #include <windowsx.h>
 #endif
 
@@ skipping 825 matching lines @@
     // We have "tiny tabs" if the tabs are so tiny that the unselected ones are
     // a different size to the selected ones.
     bool tiny_tabs = current_unselected_width_ != current_selected_width_;
     if (!IsAnimating() && (!in_tab_close_ || tiny_tabs)) {
       DoLayout();
     } else {
       SchedulePaint();
     }
   }
 
-  ui::ListSelectionModel::SelectedIndices no_longer_selected;
-  std::insert_iterator<ui::ListSelectionModel::SelectedIndices>
-      it(no_longer_selected, no_longer_selected.begin());
-  std::set_difference(old_selection.selected_indices().begin(),
-                      old_selection.selected_indices().end(),
-                      new_selection.selected_indices().begin(),
-                      new_selection.selected_indices().end(),
-                      it);
+  ui::ListSelectionModel::SelectedIndices no_longer_selected =
+      base::STLSetDifference<ui::ListSelectionModel::SelectedIndices>(
+          old_selection.selected_indices(),
+          new_selection.selected_indices());
   for (size_t i = 0; i < no_longer_selected.size(); ++i)
     tab_at(no_longer_selected[i])->StopMiniTabTitleAnimation();
 }
 
 void TabStrip::TabTitleChangedNotLoading(int model_index) {
   Tab* tab = tab_at(model_index);
   if (tab->data().mini && !tab->IsActive())
     tab->StartMiniTabTitleAnimation();
 }
 
@@ skipping 1852 matching lines @@
   if (!adjust_layout_)
     return false;
 
 #if !defined(OS_CHROMEOS)
   if (ui::GetDisplayLayout() != ui::LAYOUT_TOUCH)
     return false;
 #endif
 
   return true;
 }