[Mac] Refactor bookmark bar controller

chrome/browser/ui/cocoa/bookmarks/bookmark_bar_bridge_unittest.mm

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/bookmarks/bookmark_model_factory.h"
 #include "chrome/browser/ui/cocoa/bookmarks/bookmark_bar_bridge.h"
 #include "chrome/browser/ui/cocoa/bookmarks/bookmark_bar_controller.h"
 #include "chrome/browser/ui/cocoa/test/cocoa_profile_test.h"
 #include "chrome/test/base/testing_profile.h"
 #include "testing/gtest/include/gtest/gtest.h"
@@ skipping 95 matching lines @@
   EXPECT_TRUE(bridge.get());
 
   bridge->BookmarkModelLoaded(NULL, false);
   // |BookmarkModelBeingDeleted| is a no-op.
   bridge->BookmarkNodeMoved(NULL, NULL, 0, NULL, 0);
   bridge->BookmarkNodeAdded(NULL, NULL, 0);
   bridge->BookmarkNodeChanged(NULL, NULL);
   bridge->BookmarkNodeFaviconChanged(NULL, NULL);
   bridge->BookmarkNodeChildrenReordered(NULL, NULL);
   bridge->BookmarkNodeRemoved(NULL, NULL, 0, NULL, std::set<GURL>());
-  // 7 calls above plus an initial Loaded() in init routine makes 8.
-  EXPECT_EQ(controller.get()->called_selectors_.size(), 8U);
+  // 7 calls above plus two Loaded() in init routing makes 9.
+  EXPECT_EQ(controller.get()->called_selectors_.size(), 9U);
   std::vector<SEL> expected_selectors = {
     @selector(loaded:),  // initial from init
+    @selector(loaded:),  // initial from init
     @selector(loaded:),
     @selector(nodeMoved:oldParent:oldIndex:newParent:newIndex:),
     @selector(nodeAdded:parent:index:),
     @selector(nodeChanged:node:),
     @selector(nodeFaviconLoaded:node:),
     @selector(nodeChildrenReordered:node:),
     @selector(nodeRemoved:parent:index:)
   };
   EXPECT_EQ(controller.get()->called_selectors_, expected_selectors);
 }