Move MockBookmarkModelObserver into bookmarks namespace.

components/policy/core/browser/managed_bookmarks_tracker_unittest.cc

 // Copyright 2014 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 "components/policy/core/browser/managed_bookmarks_tracker.h"
 
 #include "base/bind.h"
 #include "base/files/file_path.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/message_loop/message_loop.h"
@@ skipping 146 matching lines @@
     } else {
       return false;
     }
     return true;
   }
 
   base::MessageLoop loop_;
   TestingPrefServiceSimple prefs_;
   test::TestBookmarkClient client_;
   scoped_ptr<BookmarkModel> model_;
-  MockBookmarkModelObserver observer_;
+  bookmarks::MockBookmarkModelObserver observer_;
   BookmarkPermanentNode* managed_node_;
   scoped_ptr<ManagedBookmarksTracker> managed_bookmarks_tracker_;
 };
 
 TEST_F(ManagedBookmarksTrackerTest, Empty) {
   CreateModel();
   EXPECT_TRUE(model_->bookmark_bar_node()->empty());
   EXPECT_TRUE(model_->other_node()->empty());
   EXPECT_TRUE(managed_node()->empty());
   EXPECT_FALSE(managed_node()->IsVisible());
@@ skipping 135 matching lines @@
   Mock::VerifyAndClearExpectations(&observer_);
 
   EXPECT_CALL(observer_, BookmarkAllUserNodesRemoved(model_.get(), _));
   model_->RemoveAllUserBookmarks();
   EXPECT_EQ(2, managed_node()->child_count());
   EXPECT_EQ(0, model_->bookmark_bar_node()->child_count());
   Mock::VerifyAndClearExpectations(&observer_);
 }
 
 }  // namespace policy