[ObjC ARC] Converts ios/chrome/browser/ui/ntp:ntp_controller to ARC.

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 16 matching lines @@
 #include "ios/web/public/test/test_web_thread_bundle.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "testing/gtest_mac.h"
 #import "third_party/ocmock/OCMock/OCMock.h"
 #import "third_party/ocmock/gtest_support.h"
 
 #if !defined(__has_feature) || !__has_feature(objc_arc)
 #error "This file requires ARC support."
 #endif
 
-@interface NewTabPageController (TestSupport)
-- (id<NewTabPagePanelProtocol>)currentController;
-- (BookmarkHomeTabletNTPController*)bookmarkController;
-- (id<NewTabPagePanelProtocol>)incognitoController;
-@end
-
-@interface NewTabPageController (PrivateMethods)
-@property(nonatomic, retain) NewTabPageView* ntpView;
-@end
-
-@implementation NewTabPageController (TestSupport)
-
-- (id<NewTabPagePanelProtocol>)currentController {
-  return currentController_;
-}
-
-- (BookmarkHomeTabletNTPController*)bookmarkController {
-  return bookmarkController_.get();
-}
-
-- (id<NewTabPagePanelProtocol>)incognitoController {
-  return incognitoController_;
-}
-
-@end
 
 namespace {
 
 class NewTabPageControllerTest : public BlockCleanupTest {
  protected:
   void SetUp() override {
     BlockCleanupTest::SetUp();
 
     // Set up a test ChromeBrowserState instance.
     TestChromeBrowserState::Builder test_cbs_builder;
@@ skipping 152 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