Removed NativeAppsCollectionViewController and related code.

ios/chrome/browser/ui/settings/cells/native_app_item_unittest.mm

-// Copyright 2016 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/settings/cells/native_app_item.h"
-
-#import "ios/chrome/browser/ui/collection_view/cells/test_utils.h"
-#include "testing/gtest/include/gtest/gtest.h"
-#import "testing/gtest_mac.h"
-
-#if !defined(__has_feature) || !__has_feature(objc_arc)
-#error "This file requires ARC support."
-#endif
-
-namespace {
-
-// Tests that the name, icon and state are honoured after a call to
-// |configureCell:|.
-TEST(NativeAppItemTest, ConfigureCell) {
-  NativeAppItem* item = [[NativeAppItem alloc] initWithType:0];
-  NSString* text = @"Test Switch";
-  UIImage* image = ios_internal::CollectionViewTestImage();
-
-  item.name = text;
-  item.icon = image;
-
-  id cell = [[[item cellClass] alloc] init];
-  ASSERT_TRUE([cell isMemberOfClass:[NativeAppCell class]]);
-
-  NativeAppCell* appCell = static_cast<NativeAppCell*>(cell);
-  EXPECT_FALSE(appCell.nameLabel.text);
-  EXPECT_TRUE(appCell.iconImageView.image);
-  EXPECT_NE(image, appCell.iconImageView.image);
-  EXPECT_FALSE(appCell.accessoryView);
-
-  [item configureCell:cell];
-  EXPECT_NSEQ(text, appCell.nameLabel.text);
-  EXPECT_NSEQ(image, appCell.iconImageView.image);
-  EXPECT_EQ((UIView*)appCell.switchControl, appCell.accessoryView);
-  EXPECT_FALSE(appCell.switchControl.on);
-}
-
-// Tests that the NativeAppItemSwitchOff configures the cell with a switch,
-// turned off.
-TEST(NativeAppItemTest, State_SwitchOff) {
-  NativeAppItem* item = [[NativeAppItem alloc] initWithType:0];
-  item.state = NativeAppItemSwitchOff;
-  NativeAppCell* appCell = [[[item cellClass] alloc] init];
-  [item configureCell:appCell];
-
-  EXPECT_EQ((UIView*)appCell.switchControl, appCell.accessoryView);
-  EXPECT_FALSE(appCell.switchControl.on);
-}
-
-// Tests that the NativeAppItemSwitchOn configures the cell with a switch,
-// turned on.
-TEST(NativeAppItemTest, State_SwitchOn) {
-  NativeAppItem* item = [[NativeAppItem alloc] initWithType:0];
-  item.state = NativeAppItemSwitchOn;
-  NativeAppCell* appCell = [[[item cellClass] alloc] init];
-  [item configureCell:appCell];
-
-  EXPECT_EQ((UIView*)appCell.switchControl, appCell.accessoryView);
-  EXPECT_TRUE(appCell.switchControl.on);
-}
-
-// Tests that the NativeAppItemInstall configures the cell with a button.
-TEST(NativeAppItemTest, State_Install) {
-  NativeAppItem* item = [[NativeAppItem alloc] initWithType:0];
-  item.state = NativeAppItemInstall;
-  NativeAppCell* appCell = [[[item cellClass] alloc] init];
-  [item configureCell:appCell];
-
-  EXPECT_EQ((UIView*)appCell.installButton, appCell.accessoryView);
-}
-
-}  // namespace