Cleanup and IWYU-ify CocoaProfileTest and related tests.

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

 // Copyright (c) 2012 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.
 
 #import <Cocoa/Cocoa.h>
 
 #include "base/memory/scoped_ptr.h"
 #include "base/strings/utf_string_conversions.h"
 #include "chrome/browser/bookmarks/bookmark_model_factory.h"
 #import "chrome/browser/ui/cocoa/bookmarks/bookmark_model_observer_for_cocoa.h"
 #import "chrome/browser/ui/cocoa/cocoa_profile_test.h"
+#include "chrome/test/base/testing_profile.h"
 
 namespace {
 
 class BookmarkModelObserverForCocoaTest : public CocoaProfileTest {
 };
 
 
 TEST_F(BookmarkModelObserverForCocoaTest, TestCallback) {
   BookmarkModel* model = BookmarkModelFactory::GetForProfile(profile());
   const BookmarkNode* node = model->AddURL(model->bookmark_bar_node(),
@@ skipping 29 matching lines @@
   model->Move(node, model->other_node(), 0);
   EXPECT_EQ(3U, pings);
   EXPECT_EQ(0U, deletions);
 
   model->Remove(node->parent(), 0);
   EXPECT_EQ(4U, pings);
   EXPECT_EQ(1U, deletions);
 }
 
 }  // namespace