Cleanup ContentSuggestions cells

ios/chrome/browser/ui/content_suggestions/cells/content_suggestions_button_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_text_item.h"
+#import "ios/chrome/browser/ui/content_suggestions/cells/content_suggestions_button_item.h"
 
 #include "testing/gtest/include/gtest/gtest.h"
 
 #if !defined(__has_feature) || !__has_feature(objc_arc)
 #error "This file requires ARC support."
 #endif
 
 namespace {
 
 // Tests that configureCell: set all the fields of the cell.
-TEST(ContentSuggestionsTextItemTest, CellIsConfigured) {
+TEST(ContentSuggestionsButtonItemTest, CellIsConfigured) {
   NSString* title = @"testTitle";
   NSString* subtitle = @"testSubtitle";
-  ContentSuggestionsTextItem* item =
-      [[ContentSuggestionsTextItem alloc] initWithType:0
-                                                 title:title
-                                              subtitle:subtitle];
-  ContentSuggestionsTextCell* cell = [[[item cellClass] alloc] init];
-  EXPECT_EQ([ContentSuggestionsTextCell class], [cell class]);
+  ContentSuggestionsButtonItem* item =
+      [[ContentSuggestionsButtonItem alloc] initWithType:0
+                                                   title:title
+                                                subtitle:subtitle];
+  ContentSuggestionsButtonCell* cell = [[[item cellClass] alloc] init];
+  EXPECT_EQ([ContentSuggestionsButtonCell class], [cell class]);
 
   [item configureCell:cell];
   EXPECT_EQ(title, [cell.titleButton titleForState:UIControlStateNormal]);
   EXPECT_EQ(subtitle, cell.detailTextLabel.text);
 }
 
 }  // namespace