Changes semantics of TabSelectedAt. For multi-selection the TabStrip

chrome/browser/tabs/tab_strip_model_observer.cc

Index: chrome/browser/tabs/tab_strip_model_observer.cc
diff --git a/chrome/browser/tabs/tab_strip_model_observer.cc b/chrome/browser/tabs/tab_strip_model_observer.cc
index f20746abeeafac2624dbc4268f691f173f05d54e..b6d0fef6399d5fef4340ba4d56b6660847db0ccc 100644
--- a/chrome/browser/tabs/tab_strip_model_observer.cc
+++ b/chrome/browser/tabs/tab_strip_model_observer.cc
@@ -4,6 +4,8 @@
 
 #include "chrome/browser/tabs/tab_strip_model_observer.h"
 
+#include "chrome/browser/tabs/tab_strip_model.h"
+
 void TabStripModelObserver::TabInsertedAt(TabContentsWrapper* contents,
                                           int index,
                                           bool foreground) {
@@ -21,6 +23,17 @@ void TabStripModelObserver::TabDetachedAt(TabContentsWrapper* contents,
 void TabStripModelObserver::TabDeselected(TabContentsWrapper* contents) {
 }
 
+void TabStripModelObserver::TabSelectionChanged(
+    TabStripModel* model,
+    TabContentsWrapper* old_contents,
+    bool user_gesture) {
+  TabContentsWrapper* new_contents = model->GetSelectedTabContents();
+  if (new_contents != old_contents) {
+    TabSelectedAt(old_contents, new_contents, model->selected_index(),
+                  user_gesture);
+  }
+}
+
 void TabStripModelObserver::TabSelectedAt(TabContentsWrapper* old_contents,
                                           TabContentsWrapper* new_contents,
                                           int index,