Delay bookmarks load while the profile is loading.

chrome/browser/bookmarks/bookmark_model.cc

Index: chrome/browser/bookmarks/bookmark_model.cc
diff --git a/chrome/browser/bookmarks/bookmark_model.cc b/chrome/browser/bookmarks/bookmark_model.cc
index 52533b4c2be72210353f7fc5c17cb7d33441eae5..f74602b74eb41809679d763472c396d70deabd47 100644
--- a/chrome/browser/bookmarks/bookmark_model.cc
+++ b/chrome/browser/bookmarks/bookmark_model.cc
@@ -9,6 +9,7 @@
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
+#include "base/deferred_sequenced_task_runner.h"
 #include "base/json/json_string_value_serializer.h"
 #include "base/sequenced_task_runner.h"
 #include "base/string_util.h"
@@ -233,6 +234,15 @@ void BookmarkModel::Shutdown() {
   loaded_signal_.Signal();
 }
 
+scoped_refptr<base::DeferredSequencedTaskRunner>
+    BookmarkModel::GetBookmarkTaskRunner() {
+  if (!bookmark_task_runner_) {
+    bookmark_task_runner_ =
+        new base::DeferredSequencedTaskRunner(profile_->GetIOTaskRunner());
+  }
+  return bookmark_task_runner_;
+}
+
 void BookmarkModel::Load() {
   if (store_.get()) {
     // If the store is non-null, it means Load was already invoked. Load should
@@ -250,7 +260,7 @@ void BookmarkModel::Load() {
                  content::Source<Profile>(profile_));
 
   // Load the bookmarks. BookmarkStorage notifies us when done.
-  store_ = new BookmarkStorage(profile_, this, profile_->GetIOTaskRunner());
+  store_ = new BookmarkStorage(profile_, this, GetBookmarkTaskRunner());
   store_->LoadBookmarks(CreateLoadDetails());
 }