Revert 253735 "Always broadcast one last "tab not blocked" notif..."

trunk/src/chrome/browser/ui/tabs/tab_strip_model.cc

Index: trunk/src/chrome/browser/ui/tabs/tab_strip_model.cc
===================================================================
--- trunk/src/chrome/browser/ui/tabs/tab_strip_model.cc	(revision 255951)
+++ trunk/src/chrome/browser/ui/tabs/tab_strip_model.cc	(working copy)
@@ -1250,12 +1250,6 @@
 void TabStripModel::InternalCloseTab(WebContents* contents,
                                      int index,
                                      bool create_historical_tabs) {
-  // Reset the blocked state of the tab, and fire a notification if necessary.
-  // <http://crbug.com/336386#c4> . TODO(avi): Remove all the "blocked" code and
-  // the WebContentsModalDialogManager from TabStripModel, and move all that
-  // tracking code to the modal dialog code, where it belongs.
-  SetTabBlocked(index, false);
-
   FOR_EACH_OBSERVER(TabStripModelObserver, observers_,
                     TabClosingAt(this, contents, index));