[Mac] Refactor bookmark pulsing into BookmarkBubbleObserverCocoa.

chrome/browser/ui/cocoa/bookmarks/bookmark_model_observer_for_cocoa.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/ui/cocoa/bookmarks/bookmark_model_observer_for_cocoa.h"
 
 using bookmarks::BookmarkModel;
 using bookmarks::BookmarkNode;
 
 BookmarkModelObserverForCocoa::BookmarkModelObserverForCocoa(
@@ skipping 14 matching lines @@
   nodes_.insert(node);
 }
 
 void BookmarkModelObserverForCocoa::StopObservingNode(
     const BookmarkNode* node) {
   nodes_.erase(node);
 }
 
 void BookmarkModelObserverForCocoa::BookmarkModelBeingDeleted(
     BookmarkModel* model) {
-  Notify(YES);
+  Notify();
 }
 
 void BookmarkModelObserverForCocoa::BookmarkNodeMoved(
     BookmarkModel* model,
     const BookmarkNode* old_parent,
     int old_index,
     const BookmarkNode* new_parent,
     int new_index) {
   // Editors often have a tree of parents, so movement of folders
   // must cause a cancel.
-  Notify(NO);
+  Notify();
 }
 
 void BookmarkModelObserverForCocoa::BookmarkNodeRemoved(
     BookmarkModel* model,
     const BookmarkNode* parent,
     int old_index,
     const BookmarkNode* node,
     const std::set<GURL>& removed_urls) {
   // See comment in BookmarkNodeMoved.
-  Notify(YES);
+  Notify();
 }
 
 void BookmarkModelObserverForCocoa::BookmarkAllUserNodesRemoved(
     BookmarkModel* model,
     const std::set<GURL>& removed_urls) {
-  Notify(YES);
+  Notify();
 }
 
 void BookmarkModelObserverForCocoa::BookmarkNodeChanged(
     BookmarkModel* model,
     const BookmarkNode* node) {
   if (!nodes_.size() || nodes_.find(node) != nodes_.end())
-    Notify(NO);
+    Notify();
 }
 
-void BookmarkModelObserverForCocoa::Notify(BOOL deleted) {
-  callback_.get()(deleted);
+void BookmarkModelObserverForCocoa::Notify() {
+  callback_.get()();
 }