Introduce ChromeBookmarkClientFactory

chrome/browser/bookmarks/chrome_bookmark_client.cc

Index: chrome/browser/bookmarks/chrome_bookmark_client.cc
diff --git a/chrome/browser/bookmarks/chrome_bookmark_client.cc b/chrome/browser/bookmarks/chrome_bookmark_client.cc
index b57fb06f3c37ae0563662a19d708b6557b4a880a..27845427a8d475faada11d190cbf5ef611e2deab 100644
--- a/chrome/browser/bookmarks/chrome_bookmark_client.cc
+++ b/chrome/browser/bookmarks/chrome_bookmark_client.cc
@@ -31,10 +31,18 @@ void NotifyHistoryOfRemovedURLs(Profile* profile,
 
 }  // namespace
 
-ChromeBookmarkClient::ChromeBookmarkClient(Profile* profile, bool index_urls)
-    : profile_(profile),
-      model_(new BookmarkModel(this, index_urls)) {
+ChromeBookmarkClient::ChromeBookmarkClient(Profile* profile)
+    : profile_(profile), model_(NULL) {
+}
+
+ChromeBookmarkClient::~ChromeBookmarkClient() {
+}
+
+void ChromeBookmarkClient::Init(BookmarkModel* model) {
+  DCHECK(!model_ && model);
+  model_ = model;
   model_->AddObserver(this);
+
   // Listen for changes to favicons so that we can update the favicon of the
   // node appropriately.
   registrar_.Add(this,
@@ -42,10 +50,13 @@ ChromeBookmarkClient::ChromeBookmarkClient(Profile* profile, bool index_urls)
                  content::Source<Profile>(profile_));
 }
 
-ChromeBookmarkClient::~ChromeBookmarkClient() {
-  model_->RemoveObserver(this);
+void ChromeBookmarkClient::Shutdown() {
+  if (model_) {
+    registrar_.RemoveAll();
 
-  registrar_.RemoveAll();
+    model_->RemoveObserver(this);
+    model_ = NULL;
+  }
 }
 
 bool ChromeBookmarkClient::PreferTouchIcon() {
@@ -131,10 +142,6 @@ void ChromeBookmarkClient::Observe(
   }
 }
 
-void ChromeBookmarkClient::Shutdown() {
-  model_->Shutdown();
-}
-
 void ChromeBookmarkClient::BookmarkModelChanged() {
 }