Fix NTP parentViewController.

ios/chrome/browser/ui/ntp/new_tab_page_controller_unittest.mm

 // Copyright 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 "ios/chrome/browser/ui/ntp/new_tab_page_controller.h"
 
 #include <memory>
 
 #include "base/memory/ptr_util.h"
 #include "base/message_loop/message_loop.h"
@@ skipping 68 matching lines @@
     TemplateURLService* template_url_service =
         ios::TemplateURLServiceFactory::GetForBrowserState(
             chrome_browser_state_.get());
     template_url_service->Load();
 
     chrome_browser_state_->CreateBookmarkModel(true);
     bookmarks::test::WaitForBookmarkModelToLoad(
         ios::BookmarkModelFactory::GetForBrowserState(
             chrome_browser_state_.get()));
     GURL url(kChromeUINewTabURL);
+    parentViewController_ = [[UIViewController alloc] init];
     controller_ =
         [[NewTabPageController alloc] initWithUrl:url
                                            loader:nil
                                           focuser:nil
                                       ntpObserver:nil
                                      browserState:chrome_browser_state_.get()
                                        colorCache:nil
                                webToolbarDelegate:nil
-                                         tabModel:nil];
+                                         tabModel:nil
+                             parentViewController:parentViewController_];
 
     incognitoController_ = [[NewTabPageController alloc]
-               initWithUrl:url
-                    loader:nil
-                   focuser:nil
-               ntpObserver:nil
-              browserState:chrome_browser_state_
-                               ->GetOffTheRecordChromeBrowserState()
-                colorCache:nil
-        webToolbarDelegate:nil
-                  tabModel:nil];
+                 initWithUrl:url
+                      loader:nil
+                     focuser:nil
+                 ntpObserver:nil
+                browserState:chrome_browser_state_
+                                 ->GetOffTheRecordChromeBrowserState()
+                  colorCache:nil
+          webToolbarDelegate:nil
+                    tabModel:nil
+        parentViewController:parentViewController_];
   };
 
   void TearDown() override {
     incognitoController_ = nil;
     controller_ = nil;
+    parentViewController_ = nil;
 
     // There may be blocks released below that have weak references to |profile|
     // owned by chrome_browser_state_.  Ensure BlockCleanupTest::TearDown() is
     // called before |chrome_browser_state_| is reset.
     BlockCleanupTest::TearDown();
     chrome_browser_state_.reset();
   }
 
   web::TestWebThreadBundle thread_bundle_;
   IOSChromeScopedTestingLocalState local_state_;
   std::unique_ptr<TestChromeBrowserState> chrome_browser_state_;
+  UIViewController* parentViewController_;
   NewTabPageController* controller_;
   NewTabPageController* incognitoController_;
 };
 
 TEST_F(NewTabPageControllerTest, NewTabBarItemDidChange) {
   // Switching the selected index in the NewTabPageBar should cause
   // newTabBarItemDidChange to get called.
   NewTabPageBar* bar = [[controller_ ntpView] tabBar];
   NSUInteger bookmarkIndex = 0;
   UIButton* button = [[bar buttons] objectAtIndex:bookmarkIndex];
@@ skipping 73 matching lines @@
   EXPECT_EQ("open_tabs",
             NewTabPage::FragmentFromIdentifier(NewTabPage::kOpenTabsPanel));
   EXPECT_EQ("", NewTabPage::FragmentFromIdentifier(NewTabPage::kNone));
   EXPECT_EQ(NewTabPage::kBookmarksPanel,
             NewTabPage::IdentifierFromFragment("bookmarks"));
   EXPECT_EQ(NewTabPage::kNone, NewTabPage::IdentifierFromFragment("garbage"));
   EXPECT_EQ(NewTabPage::kNone, NewTabPage::IdentifierFromFragment(""));
 }
 
 }  // anonymous namespace