Cleanup ContentSuggestions cells

ios/chrome/browser/ui/content_suggestions/content_suggestions_footer_item_unittest.mm

-// Copyright 2017 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/content_suggestions/content_suggestions_footer_item.h"
-
-#include "testing/gtest/include/gtest/gtest.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
-
-namespace {
-
-// Tests that configureCell: sets the title of the button and the action.
-TEST(ContentSuggestionsFooterItemTest, CellIsConfigured) {
-  // Setup.
-  NSString* title = @"testTitle";
-  __block BOOL hasBeenCalled = NO;
-  ProceduralBlock block = ^void() {
-    hasBeenCalled = YES;
-  };
-  ContentSuggestionsFooterItem* item =
-      [[ContentSuggestionsFooterItem alloc] initWithType:0
-                                                   title:title
-                                                   block:block];
-  ContentSuggestionsFooterCell* cell = [[[item cellClass] alloc] init];
-  ASSERT_EQ([ContentSuggestionsFooterCell class], [cell class]);
-  ASSERT_EQ(nil, [cell.button titleForState:UIControlStateNormal]);
-
-  // Action.
-  [item configureCell:cell];
-
-  // Tests.
-  ASSERT_EQ(title, [cell.button titleForState:UIControlStateNormal]);
-  ASSERT_FALSE(hasBeenCalled);
-  [cell.button sendActionsForControlEvents:UIControlEventTouchUpInside];
-  ASSERT_TRUE(hasBeenCalled);
-}
-
-// Tests that when the cell is reused the button's block is removed.
-TEST(ContentSuggestionsFooterItemTest, ReuseCell) {
-  __block BOOL hasBeenCalled = NO;
-  ProceduralBlock block = ^void() {
-    hasBeenCalled = YES;
-  };
-  ContentSuggestionsFooterItem* item =
-      [[ContentSuggestionsFooterItem alloc] initWithType:0
-                                                   title:@""
-                                                   block:block];
-  ContentSuggestionsFooterCell* cell = [[[item cellClass] alloc] init];
-  [item configureCell:cell];
-
-  // Action.
-  [cell prepareForReuse];
-
-  // Test.
-  ASSERT_FALSE(hasBeenCalled);
-  [cell.button sendActionsForControlEvents:UIControlEventTouchUpInside];
-  ASSERT_FALSE(hasBeenCalled);
-}
-}