Improvements to tab title prefix eliding as per email discussions.

chrome/browser/ui/views/tabs/base_tab_strip.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 "chrome/browser/ui/views/tabs/base_tab_strip.h"
 
 #include "base/logging.h"
 #include "chrome/browser/ui/title_prefix_matcher.h"
 #include "chrome/browser/ui/view_ids.h"
 #include "chrome/browser/ui/views/tabs/dragged_tab_controller.h"
@@ skipping 462 matching lines @@
   DCHECK(tab != NULL);
   return tab->data().mini || tab->data().title.empty();
 }
 
 void BaseTabStrip::UpdateCommonTitlePrefix() {
   std::vector<TitlePrefixMatcher::TitleInfo> tab_title_infos;
   for (int tab_index = 0; tab_index < tab_count(); ++tab_index) {
     DCHECK(tab_data_[tab_index].tab != NULL);
     if (!IgnoreTitlePrefixEliding(tab_data_[tab_index].tab)) {
       tab_title_infos.push_back(TitlePrefixMatcher::TitleInfo(
-          &tab_data_[tab_index].tab->data().title, tab_index));
+          &tab_data_[tab_index].tab->data().title,
+          tab_data_[tab_index].tab->data().url,
+          tab_index));
     }
   }
   TitlePrefixMatcher::CalculatePrefixLengths(&tab_title_infos);
   for (size_t title_index = 0; title_index < tab_title_infos.size();
        ++title_index) {
     int tab_index = tab_title_infos[title_index].caller_value;
     TabRendererData data = tab_data_[tab_index].tab->data();
     if (data.common_prefix_length !=
         tab_title_infos[title_index].prefix_length) {
       data.common_prefix_length = tab_title_infos[title_index].prefix_length;
@@ skipping 93 matching lines @@
     // Animate the view back to its correct position.
     GenerateIdealBounds();
     AnimateToIdealBounds();
   }
   bounds_animator_.AnimateViewTo(tab, ideal_bounds(TabIndexOfTab(tab)));
   // Install a delegate to reset the dragging state when done. We have to leave
   // dragging true for the tab otherwise it'll draw beneath the new tab button.
   bounds_animator_.SetAnimationDelegate(
       tab, new ResetDraggingStateDelegate(tab), true);
 }