bookmarks: Get rid of TestingProfile::BlockUntilBookmarkModelLoaded().

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

Index: chrome/browser/ui/cocoa/bookmarks/bookmark_bar_view_unittest.mm
diff --git a/chrome/browser/ui/cocoa/bookmarks/bookmark_bar_view_unittest.mm b/chrome/browser/ui/cocoa/bookmarks/bookmark_bar_view_unittest.mm
index 55155efc3250fb173626558b938766078fda40e2..473f71e5bc9d3894e8f12a92349fa9c63e0b194b 100644
--- a/chrome/browser/ui/cocoa/bookmarks/bookmark_bar_view_unittest.mm
+++ b/chrome/browser/ui/cocoa/bookmarks/bookmark_bar_view_unittest.mm
@@ -16,6 +16,7 @@
 #include "chrome/browser/ui/cocoa/cocoa_profile_test.h"
 #import "chrome/browser/ui/cocoa/cocoa_test_helper.h"
 #import "chrome/browser/ui/cocoa/url_drop_target.h"
+#include "chrome/test/base/ui_test_utils.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "testing/platform_test.h"
 #import "third_party/mozilla/NSPasteboard+Utils.h"
@@ -251,10 +252,11 @@ TEST_F(BookmarkBarViewTest, BookmarkButtonDragAndDropAcrossProfiles) {
   TestingProfile* other_profile =
       testing_profile_manager()->CreateTestingProfile("other");
   other_profile->CreateBookmarkModel(true);
-  other_profile->BlockUntilBookmarkModelLoaded();
 
   BookmarkModel* bookmark_model =
       BookmarkModelFactory::GetForProfile(profile());
+  ui_test_utils::WaitForBookmarkModelToLoad(bookmark_model);
+
   const BookmarkNode* node =
       bookmark_model->AddURL(bookmark_model->bookmark_bar_node(),
                              0,