Out of line cleanups for Mac.

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

+// Copyright (c) 2011 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"
+
+BookmarkModelObserverForCocoa::BookmarkModelObserverForCocoa(
+    const BookmarkNode* node,
+    BookmarkModel* model,
+    NSObject* object,
+    SEL selector) {
+  DCHECK(model);
+  node_ = node;
+  model_ = model;
+  object_ = object;
+  selector_ = selector;
+  model_->AddObserver(this);
+}
+
+BookmarkModelObserverForCocoa::~BookmarkModelObserverForCocoa() {
+  model_->RemoveObserver(this);
+}
+
+void BookmarkModelObserverForCocoa::BookmarkModelBeingDeleted(
+    BookmarkModel* model) {
+  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();
+}
+
+void BookmarkModelObserverForCocoa::BookmarkNodeRemoved(
+    BookmarkModel* model,
+    const BookmarkNode* parent,
+    int old_index,
+    const BookmarkNode* node) {
+  // See comment in BookmarkNodeMoved.
+  Notify();
+}
+
+void BookmarkModelObserverForCocoa::BookmarkNodeChanged(
+    BookmarkModel* model,
+    const BookmarkNode* node) {
+  if ((node_ == node) || (!node_))
+    Notify();
+}
+
+void BookmarkModelObserverForCocoa::BookmarkImportBeginning(
+    BookmarkModel* model) {
+  // Be conservative.
+  Notify();
+}
+
+void BookmarkModelObserverForCocoa::Notify() {
+  [object_ performSelector:selector_ withObject:nil];
+}