Remove PerBrowser launcher, reland step 1 of 2

ash/launcher/launcher.cc

Index: ash/launcher/launcher.cc
diff --git a/ash/launcher/launcher.cc b/ash/launcher/launcher.cc
index 5bd12622319efddb0d04a53b84321b3b965ce546..008646de6d5ecd90aea574a36ed627f65d9906b5 100644
--- a/ash/launcher/launcher.cc
+++ b/ash/launcher/launcher.cc
@@ -169,10 +169,7 @@ void Launcher::LaunchAppIndexAt(int item_index) {
   // There are two ways how found_index can be valid: a.) the nth item was
   // found (which is true when indexes_left is -1) or b.) the last item was
   // requested (which is true when index was passed in as a negative number).
-  if (found_index >= 0 && (indexes_left == -1 || item_index < 0) &&
-      (delegate_->IsPerAppLauncher() ||
-       (items[found_index].status == ash::STATUS_RUNNING ||
-        items[found_index].status == ash::STATUS_CLOSED))) {
+  if (found_index >= 0 && (indexes_left == -1 || item_index < 0)) {
     // Then set this one as active (or advance to the next item of its kind).
     ActivateLauncherItem(found_index);
   }