bookmarks: Add HasBookmarks() method to BookmarkModel API.

chrome/browser/bookmarks/bookmark_model_unittest.cc

 // Copyright (c) 2010 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 <set>
 
 #include "app/tree_node_iterator.h"
 #include "app/tree_node_model.h"
 #include "base/base_paths.h"
 #include "base/file_util.h"
@@ skipping 460 matching lines @@
   const GURL url("http://foo.com/0");
   model.AddURL(model.GetBookmarkBarNode(), 0, ASCIIToUTF16("blah"), url);
   model.AddURL(model.GetBookmarkBarNode(), 1, ASCIIToUTF16("blah"), url);
 
   std::vector<GURL> urls;
   model.GetBookmarks(&urls);
   EXPECT_EQ(1U, urls.size());
   ASSERT_TRUE(urls[0] == url);
 }
 
+TEST_F(BookmarkModelTest, HasBookmarks) {
+  const GURL url("http://foo.com/");
+  model.AddURL(model.GetBookmarkBarNode(), 0, ASCIIToUTF16("bar"), url);
+
+  EXPECT_TRUE(model.HasBookmarks());
+}
+
 namespace {
 
 // NotificationObserver implementation used in verifying we've received the
 // NOTIFY_URLS_STARRED method correctly.
 class StarredListener : public NotificationObserver {
  public:
   StarredListener() : notification_count_(0), details_(false) {
     registrar_.Add(this, NotificationType::URLS_STARRED, Source<Profile>(NULL));
   }
 
@@ skipping 487 matching lines @@
   // Make sure we were notified.
   AssertObserverCount(0, 0, 0, 0, 1);
 
   // Make sure the order matches (remember, 'a' and 'C' are folders and
   // come first).
   EXPECT_EQ(parent->GetChild(0)->GetTitleAsString16(), ASCIIToUTF16("a"));
   EXPECT_EQ(parent->GetChild(1)->GetTitleAsString16(), ASCIIToUTF16("C"));
   EXPECT_EQ(parent->GetChild(2)->GetTitleAsString16(), ASCIIToUTF16("B"));
   EXPECT_EQ(parent->GetChild(3)->GetTitleAsString16(), ASCIIToUTF16("d"));
 }