Multi-tab: Adding new Notification when tab selection changes.

chrome/browser/ui/views/tabs/tab_strip.cc

Index: chrome/browser/ui/views/tabs/tab_strip.cc
diff --git a/chrome/browser/ui/views/tabs/tab_strip.cc b/chrome/browser/ui/views/tabs/tab_strip.cc
index 990bcecac37ce35856924931ab33f5bf3c77332b..b031d9a0f2c2f4d3fe18d2d7806ce53de2ae6759 100644
--- a/chrome/browser/ui/views/tabs/tab_strip.cc
+++ b/chrome/browser/ui/views/tabs/tab_strip.cc
@@ -229,7 +229,8 @@ void TabStrip::RemoveTabAt(int model_index) {
     StartRemoveTabAnimation(model_index);
 }
 
-void TabStrip::SelectTabAt(int old_model_index, int new_model_index) {
+void TabStrip::SetSelection(const TabStripSelectionModel& old_selection,
+                            const TabStripSelectionModel& new_selection) {
   // 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_;
@@ -239,8 +240,14 @@ void TabStrip::SelectTabAt(int old_model_index, int new_model_index) {
     SchedulePaint();
   }
 
-  if (old_model_index >= 0) {
-    GetTabAtTabDataIndex(ModelIndexToTabIndex(old_model_index))->
+  TabStripSelectionModel::SelectedIndices no_longer_selected;
+  std::set_difference(old_selection.selected_indices().begin(),
+                      old_selection.selected_indices().end(),
+                      new_selection.selected_indices().begin(),
+                      new_selection.selected_indices().end(),
+                      no_longer_selected.begin());
+  for (size_t i = 0; i < no_longer_selected.size(); ++i) {
+    GetTabAtTabDataIndex(ModelIndexToTabIndex(no_longer_selected[i]))->
         StopMiniTabTitleAnimation();
   }
 }