Add profile selector menu to app list.

ui/base/models/list_model.h

Index: ui/base/models/list_model.h
diff --git a/ui/base/models/list_model.h b/ui/base/models/list_model.h
index 9b4440d9a020d2db41d8bfb7adade37fe2ec173e..847cf78b31115a594dcb0c516bde6d3e1726c585 100644
--- a/ui/base/models/list_model.h
+++ b/ui/base/models/list_model.h
@@ -34,6 +34,18 @@ class ListModel {
     AddAt(item_count(), item);
   }
 
+  // Add a vector of items to the end of the model. This triggers one
+  // notification after adding all items.
+  void AddAll(ScopedVector<ItemType> new_items) {
+    size_t count = item_count();

[tapted, 2013/08/05 03:01:39]

I think this needs either a DCHECK(!new_items.empty()), or an early return.

+    std::vector<ItemType*> new_items_released;
+    new_items.release(&new_items_released);
+    items_.insert(items_.end(),
+                  new_items_released.begin(),
+                  new_items_released.end());
+    NotifyItemsAdded(count, items_.size());

[tapted, 2013/08/05 03:01:39]

items_.size() isn't right -- it should be new_items_released.size(). Or
items_.size() - count. (Maybe DCHECK_EQ for those two anyway).

+  }
+
   // Removes an item at given |index| from the model. Note the removed item
   // is NOT deleted and it's up to the caller to delete it.
   ItemType* RemoveAt(size_t index) {