[ios] Removes LegacyBookmark classes and cleans up

-Deletes the following unused classes: BookmarkElevatedToolbar, LegacyBookmarkParentFolderItem,
LegacyBookmarkTextFieldItem.
-Creates a BookmarkUIConstants file.
-Adds a Legacy prefix to BookmarkCells, to prepare for refresh cells.

Cq-Include-Trybots: master.tryserver.chromium.mac:ios-simulator-cronet;master.tryserver.chromium.mac:ios-simulator-full-configs
Change-Id: I35662f194eaada4f95cbf46b636426cc98767ca4
Reviewed-on: https://chromium-review.googlesource.com/1049064Reviewed-by: Rohit Rao <rohitrao@chromium.org>
Commit-Queue: Sergio Collazos <sczs@chromium.org>
Cr-Commit-Position: refs/heads/master@{#557541}

ios/chrome/browser/ui/bookmarks/BUILD.gn

@@ -7,8 +7,6 @@ source_set("bookmarks") {
   sources = [
     "bookmark_edit_view_controller.h",
     "bookmark_edit_view_controller.mm",
-    "bookmark_elevated_toolbar.h",
-    "bookmark_elevated_toolbar.mm",
     "bookmark_empty_background.h",
     "bookmark_empty_background.mm",
     "bookmark_folder_editor_view_controller.h",
@@ -46,6 +44,7 @@ source_set("bookmarks") {
     "undo_manager_wrapper.mm",
   ]
   deps = [
+    ":bookmarks_ui",
     "resources:bookmark_bar_innershadow",
     "resources:bookmark_bar_shadow",
     "resources:bookmark_black_delete",
@@ -132,6 +131,15 @@ source_set("bookmarks") {
   ]
 }
 
+source_set("bookmarks_ui") {
+  configs += [ "//build/config/compiler:enable_arc" ]
+  sources = [
+    "bookmark_ui_constants.h",
+    "bookmark_ui_constants.mm",
+  ]
+  deps = []
+}
+
 source_set("unit_tests") {
   configs += [ "//build/config/compiler:enable_arc" ]
   testonly = true
@@ -164,6 +172,7 @@ source_set("eg_tests") {
     "bookmarks_egtest.mm",
   ]
   deps = [
+    ":bookmarks_ui",
     "//base",
     "//components/bookmarks/browser",
     "//components/prefs",

ios/chrome/browser/ui/bookmarks/bookmark_edit_view_controller.mm

@@ -21,6 +21,7 @@
 #import "ios/chrome/browser/ui/bookmarks/bookmark_folder_view_controller.h"
 #import "ios/chrome/browser/ui/bookmarks/bookmark_mediator.h"
 #import "ios/chrome/browser/ui/bookmarks/bookmark_model_bridge_observer.h"
+#import "ios/chrome/browser/ui/bookmarks/bookmark_ui_constants.h"
 #import "ios/chrome/browser/ui/bookmarks/bookmark_utils_ios.h"
 #import "ios/chrome/browser/ui/bookmarks/cells/bookmark_parent_folder_item.h"
 #import "ios/chrome/browser/ui/bookmarks/cells/bookmark_text_field_item.h"
@@ -230,7 +231,7 @@ typedef NS_ENUM(NSInteger, ItemType) {
                                        style:UIBarButtonItemStylePlain
                                       target:self
                                       action:@selector(deleteBookmark)];
-  deleteButton.accessibilityIdentifier = @"Delete_action";
+  deleteButton.accessibilityIdentifier = kBookmarkEditDeleteButtonIdentifier;
   deleteButton.tintColor = [UIColor blackColor];
   UIBarButtonItem* spaceButton = [[UIBarButtonItem alloc]
       initWithBarButtonSystemItem:UIBarButtonSystemItemFlexibleSpace
@@ -455,8 +456,8 @@ typedef NS_ENUM(NSInteger, ItemType) {
       cell.selectionStyle = UITableViewCellSelectionStyleNone;
       break;
     case ItemTypeURL: {
-      BookmarkTextFieldCell* URLCell =
-          base::mac::ObjCCastStrict<BookmarkTextFieldCell>(cell);
+      LegacyBookmarkTextFieldCell* URLCell =
+          base::mac::ObjCCastStrict<LegacyBookmarkTextFieldCell>(cell);
       URLCell.textField.textValidator = self;
       URLCell.selectionStyle = UITableViewCellSelectionStyleNone;
       break;

ios/chrome/browser/ui/bookmarks/bookmark_elevated_toolbar.h

-// Copyright 2015 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.
-
-#ifndef IOS_CHROME_BROWSER_UI_BOOKMARKS_BOOKMARK_ELEVATED_TOOLBAR_H_
-#define IOS_CHROME_BROWSER_UI_BOOKMARKS_BOOKMARK_ELEVATED_TOOLBAR_H_
-
-#import <UIKit/UIKit.h>
-
-@class MDCButton;
-
-// A class containing one button that has a Material shadow.
-@interface BookmarksElevatedToolbar : UIView
-
-@property(nonatomic, assign) CGFloat shadowElevation;
-
-- (void)setButton:(MDCButton*)button;
-
-@end
-
-#endif  // IOS_CHROME_BROWSER_UI_BOOKMARKS_BOOKMARK_ELEVATED_TOOLBAR_H_

ios/chrome/browser/ui/bookmarks/bookmark_elevated_toolbar.mm

-// Copyright 2015 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/bookmarks/bookmark_elevated_toolbar.h"
-
-#import "ios/chrome/browser/ui/util/constraints_ui_util.h"
-#import "ios/third_party/material_components_ios/src/components/Buttons/src/MDCButton.h"
-#import "ios/third_party/material_components_ios/src/components/ShadowElevations/src/MaterialShadowElevations.h"
-#import "ios/third_party/material_components_ios/src/components/ShadowLayer/src/MaterialShadowLayer.h"
-
-#if !defined(__has_feature) || !__has_feature(objc_arc)
-#error "This file requires ARC support."
-#endif
-
-namespace {
-const CGFloat kButtonHeight = 48;
-}
-
-@interface BookmarksElevatedToolbar ()
-
-@property(nonatomic, readonly) MDCShadowLayer* shadowLayer;
-@property(nonatomic, strong) MDCButton* currentButton;
-
-@end
-
-@implementation BookmarksElevatedToolbar
-
-@synthesize currentButton = _currentButton;
-@synthesize shadowLayer = _shadowLayer;
-
-- (instancetype)init {
-  self = [super init];
-  if (self) {
-    [self.layer addSublayer:[[MDCShadowLayer alloc] init]];
-    self.shadowElevation = MDCShadowElevationSearchBarResting;
-    self.backgroundColor = [UIColor whiteColor];
-  }
-  return self;
-}
-
-- (void)setButton:(MDCButton*)button {
-  [self.currentButton removeFromSuperview];
-  self.currentButton = button;
-  if (!button)
-    return;
-
-  [self addSubview:button];
-  button.translatesAutoresizingMaskIntoConstraints = NO;
-
-  id<LayoutGuideProvider> safeAreaLayoutGuide =
-      SafeAreaLayoutGuideForView(self);
-  [NSLayoutConstraint activateConstraints:@[
-    [button.leadingAnchor
-        constraintEqualToAnchor:safeAreaLayoutGuide.leadingAnchor],
-    [button.topAnchor constraintEqualToAnchor:safeAreaLayoutGuide.topAnchor],
-    [button.bottomAnchor
-        constraintEqualToAnchor:safeAreaLayoutGuide.bottomAnchor],
-    [button.heightAnchor constraintEqualToConstant:kButtonHeight],
-  ]];
-}
-
-#pragma mark - Properties
-
-- (MDCShadowLayer*)shadowLayer {
-  if (!_shadowLayer) {
-    _shadowLayer = [[MDCShadowLayer alloc] init];
-    _shadowLayer.elevation = MDCShadowElevationNone;
-    [self.layer addSublayer:self.shadowLayer];
-  }
-  return _shadowLayer;
-}
-
-- (void)setShadowElevation:(CGFloat)shadowElevation {
-  self.shadowLayer.elevation = shadowElevation;
-}
-
-- (CGFloat)shadowElevation {
-  return self.shadowLayer.elevation;
-}
-
-#pragma mark - UIView
-
-- (void)layoutSubviews {
-  [super layoutSubviews];
-  self.shadowLayer.frame = self.layer.bounds;
-}
-
-@end

ios/chrome/browser/ui/bookmarks/bookmark_folder_editor_view_controller.mm

@@ -16,6 +16,7 @@
 #include "components/bookmarks/browser/bookmark_node.h"
 #import "ios/chrome/browser/ui/bookmarks/bookmark_folder_view_controller.h"
 #import "ios/chrome/browser/ui/bookmarks/bookmark_model_bridge_observer.h"
+#import "ios/chrome/browser/ui/bookmarks/bookmark_ui_constants.h"
 #import "ios/chrome/browser/ui/bookmarks/bookmark_utils_ios.h"
 #import "ios/chrome/browser/ui/bookmarks/cells/bookmark_parent_folder_item.h"
 #import "ios/chrome/browser/ui/bookmarks/cells/bookmark_text_field_item.h"
@@ -456,7 +457,8 @@ folderEditorWithBookmarkModel:(bookmarks::BookmarkModel*)bookmarkModel
                                        style:UIBarButtonItemStylePlain
                                       target:self
                                       action:@selector(deleteFolder)];
-  deleteButton.accessibilityIdentifier = @"Delete Folder";
+  deleteButton.accessibilityIdentifier =
+      kBookmarkFolderEditorDeleteButtonIdentifier;
   deleteButton.tintColor = [UIColor blackColor];
 
   UIBarButtonItem* spaceButton = [[UIBarButtonItem alloc]

ios/chrome/browser/ui/bookmarks/bookmark_ui_constants.h

+// Copyright 2018 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.
+
+#ifndef IOS_CHROME_BROWSER_UI_BOOKMARKS_BOOKMARK_UI_CONSTANTS_H_
+#define IOS_CHROME_BROWSER_UI_BOOKMARKS_BOOKMARK_UI_CONSTANTS_H_
+
+#import <Foundation/Foundation.h>
+
+// Accessibility identifier of the BookmarkEditVC toolbar delete button.
+extern NSString* const kBookmarkEditDeleteButtonIdentifier;
+// Accessibility identifier of the BookmarkFolderEditorVC toolbar delete button.
+extern NSString* const kBookmarkFolderEditorDeleteButtonIdentifier;
+
+#endif  // IOS_CHROME_BROWSER_UI_BOOKMARKS_BOOKMARK_UI_CONSTANTS_H_

ios/chrome/browser/ui/bookmarks/bookmark_ui_constants.mm

+// Copyright 2018 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/bookmarks/bookmark_ui_constants.h"
+
+#if !defined(__has_feature) || !__has_feature(objc_arc)
+#error "This file requires ARC support."
+#endif
+
+NSString* const kBookmarkEditDeleteButtonIdentifier =
+    @"kBookmarkEditDeleteButtonIdentifier";
+NSString* const kBookmarkFolderEditorDeleteButtonIdentifier =
+    @"kBookmarkFolderEditorDeleteButtonIdentifier";

ios/chrome/browser/ui/bookmarks/bookmarks_egtest.mm

@@ -21,6 +21,7 @@
 #import "ios/chrome/browser/ui/authentication/signin_earlgrey_utils.h"
 #import "ios/chrome/browser/ui/authentication/signin_promo_view.h"
 #import "ios/chrome/browser/ui/bookmarks/bookmark_path_cache.h"
+#import "ios/chrome/browser/ui/bookmarks/bookmark_ui_constants.h"
 #import "ios/chrome/browser/ui/bookmarks/bookmark_utils_ios.h"
 #import "ios/chrome/browser/ui/toolbar/buttons/toolbar_constants.h"
 #import "ios/chrome/browser/ui/toolbar/legacy/toolbar_controller_constants.h"
@@ -215,7 +216,8 @@ id<GREYMatcher> CloseToolsMenuButton() {
   // Clear the bookmark via the UI.
   [[EarlGrey selectElementWithMatcher:grey_accessibilityLabel(kStarLitLabel)]
       performAction:grey_tap()];
-  [[EarlGrey selectElementWithMatcher:grey_accessibilityID(@"Delete_action")]
+  [[EarlGrey selectElementWithMatcher:grey_accessibilityID(
+                                          kBookmarkEditDeleteButtonIdentifier)]
       performAction:grey_tap()];
 
   // Verify the bookmark is not in the BookmarkModel.
@@ -1654,7 +1656,9 @@ id<GREYMatcher> CloseToolsMenuButton() {
   [[EarlGrey selectElementWithMatcher:grey_accessibilityID(@"Folder Editor")]
       assertWithMatcher:grey_notNil()];
 
-  [[EarlGrey selectElementWithMatcher:grey_accessibilityID(@"Delete Folder")]
+  [[EarlGrey
+      selectElementWithMatcher:grey_accessibilityID(
+                                   kBookmarkFolderEditorDeleteButtonIdentifier)]
       performAction:grey_tap()];
 
   // Wait for Undo toast to go away from screen.
@@ -2068,7 +2072,9 @@ id<GREYMatcher> CloseToolsMenuButton() {
       performAction:grey_tap()];
 
   // Delete it.
-  [[EarlGrey selectElementWithMatcher:grey_accessibilityID(@"Delete Folder")]
+  [[EarlGrey
+      selectElementWithMatcher:grey_accessibilityID(
+                                   kBookmarkFolderEditorDeleteButtonIdentifier)]
       performAction:grey_tap()];
 
   // Wait until it's gone.

ios/chrome/browser/ui/bookmarks/cells/BUILD.gn

@@ -18,10 +18,6 @@ source_set("cells") {
     "bookmark_table_signin_promo_cell.mm",
     "bookmark_text_field_item.h",
     "bookmark_text_field_item.mm",
-    "legacy_bookmark_parent_folder_item.h",
-    "legacy_bookmark_parent_folder_item.mm",
-    "legacy_bookmark_text_field_item.h",
-    "legacy_bookmark_text_field_item.mm",
   ]
 
   deps = [
@@ -31,7 +27,6 @@ source_set("cells") {
     "//ios/chrome/browser/ui",
     "//ios/chrome/browser/ui/authentication",
     "//ios/chrome/browser/ui/authentication:authentication_ui",
-    "//ios/chrome/browser/ui/collection_view/cells",
     "//ios/chrome/browser/ui/colors",
     "//ios/chrome/browser/ui/icons",
     "//ios/chrome/browser/ui/table_view:styler",

ios/chrome/browser/ui/bookmarks/cells/bookmark_parent_folder_item.h

@@ -17,8 +17,8 @@
 
 @end
 
-// Cell class associated to BookmarkParentFolderItem.
-@interface BookmarkParentFolderCell : UITableViewCell
+// Legacy Cell class associated to BookmarkParentFolderItem.
+@interface LegacyBookmarkParentFolderCell : UITableViewCell
 
 // Label that displays the item's title.
 @property(nonatomic, readonly, strong) UILabel* parentFolderNameLabel;

ios/chrome/browser/ui/bookmarks/cells/bookmark_parent_folder_item.mm

@@ -24,7 +24,7 @@
   self = [super initWithType:type];
   if (self) {
     self.accessibilityIdentifier = @"Change Folder";
-    self.cellClass = [BookmarkParentFolderCell class];
+    self.cellClass = [LegacyBookmarkParentFolderCell class];
   }
   return self;
 }
@@ -34,19 +34,19 @@
 - (void)configureCell:(UITableViewCell*)tableCell
            withStyler:(ChromeTableViewStyler*)styler {
   [super configureCell:tableCell withStyler:styler];
-  BookmarkParentFolderCell* cell =
-      base::mac::ObjCCastStrict<BookmarkParentFolderCell>(tableCell);
+  LegacyBookmarkParentFolderCell* cell =
+      base::mac::ObjCCastStrict<LegacyBookmarkParentFolderCell>(tableCell);
   cell.parentFolderNameLabel.text = self.title;
 }
 
 @end
 
-@interface BookmarkParentFolderCell ()
+@interface LegacyBookmarkParentFolderCell ()
 @property(nonatomic, readwrite, strong) UILabel* parentFolderNameLabel;
 @property(nonatomic, strong) UILabel* decorationLabel;
 @end
 
-@implementation BookmarkParentFolderCell
+@implementation LegacyBookmarkParentFolderCell
 
 @synthesize parentFolderNameLabel = _parentFolderNameLabel;
 @synthesize decorationLabel = _decorationLabel;

ios/chrome/browser/ui/bookmarks/cells/bookmark_parent_folder_item_unittest.mm

@@ -21,8 +21,8 @@ using BookmarkParentFolderItemTest = PlatformTest;
 TEST_F(BookmarkParentFolderItemTest, LabelGetsTitle) {
   BookmarkParentFolderItem* item =
       [[BookmarkParentFolderItem alloc] initWithType:0];
-  BookmarkParentFolderCell* cell =
-      [[BookmarkParentFolderCell alloc] initWithFrame:CGRectZero];
+  LegacyBookmarkParentFolderCell* cell =
+      [[LegacyBookmarkParentFolderCell alloc] initWithFrame:CGRectZero];
   ChromeTableViewStyler* styler = [[ChromeTableViewStyler alloc] init];
 
   item.title = @"Foo";

ios/chrome/browser/ui/bookmarks/cells/bookmark_text_field_item.h

@@ -34,7 +34,7 @@
 
 @end
 
-@interface BookmarkTextFieldCell : UITableViewCell
+@interface LegacyBookmarkTextFieldCell : UITableViewCell
 
 // Text field to display the title or the URL of the bookmark node.
 @property(nonatomic, readonly, strong) UITextField<TextFieldStyling>* textField;

ios/chrome/browser/ui/bookmarks/cells/bookmark_text_field_item.mm

@@ -23,7 +23,7 @@
 - (instancetype)initWithType:(NSInteger)type {
   self = [super initWithType:type];
   if (self) {
-    self.cellClass = [BookmarkTextFieldCell class];
+    self.cellClass = [LegacyBookmarkTextFieldCell class];
   }
   return self;
 }
@@ -34,8 +34,8 @@
            withStyler:(ChromeTableViewStyler*)styler {
   [super configureCell:tableCell withStyler:styler];
 
-  BookmarkTextFieldCell* cell =
-      base::mac::ObjCCastStrict<BookmarkTextFieldCell>(tableCell);
+  LegacyBookmarkTextFieldCell* cell =
+      base::mac::ObjCCastStrict<LegacyBookmarkTextFieldCell>(tableCell);
   cell.textField.text = self.text;
   cell.textField.placeholder = self.placeholder;
   cell.textField.tag = self.type;
@@ -58,12 +58,12 @@
 
 @end
 
-@interface BookmarkTextFieldCell ()
+@interface LegacyBookmarkTextFieldCell ()
 @property(nonatomic, readwrite, strong)
     UITextField<TextFieldStyling>* textField;
 @end
 
-@implementation BookmarkTextFieldCell
+@implementation LegacyBookmarkTextFieldCell
 
 @synthesize textField = _textField;
 

ios/chrome/browser/ui/bookmarks/cells/bookmark_text_field_item_unittest.mm

@@ -20,8 +20,8 @@ using BookmarkTextFieldItemTest = PlatformTest;
 
 TEST_F(BookmarkTextFieldItemTest, DelegateGetsTextFieldEvents) {
   BookmarkTextFieldItem* item = [[BookmarkTextFieldItem alloc] initWithType:0];
-  BookmarkTextFieldCell* cell =
-      [[BookmarkTextFieldCell alloc] initWithFrame:CGRectZero];
+  LegacyBookmarkTextFieldCell* cell =
+      [[LegacyBookmarkTextFieldCell alloc] initWithFrame:CGRectZero];
   id mockDelegate =
       [OCMockObject mockForProtocol:@protocol(BookmarkTextFieldItemDelegate)];
   ChromeTableViewStyler* styler = [[ChromeTableViewStyler alloc] init];
@@ -36,8 +36,8 @@ TEST_F(BookmarkTextFieldItemTest, DelegateGetsTextFieldEvents) {
 
 TEST_F(BookmarkTextFieldItemTest, TextFieldGetsText) {
   BookmarkTextFieldItem* item = [[BookmarkTextFieldItem alloc] initWithType:0];
-  BookmarkTextFieldCell* cell =
-      [[BookmarkTextFieldCell alloc] initWithFrame:CGRectZero];
+  LegacyBookmarkTextFieldCell* cell =
+      [[LegacyBookmarkTextFieldCell alloc] initWithFrame:CGRectZero];
   ChromeTableViewStyler* styler = [[ChromeTableViewStyler alloc] init];
 
   item.text = @"Foo";

ios/chrome/browser/ui/bookmarks/cells/legacy_bookmark_parent_folder_item.h

-// 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.
-
-#ifndef IOS_CHROME_BROWSER_UI_BOOKMARKS_CELLS_LEGACY_BOOKMARK_PARENT_FOLDER_ITEM_H_
-#define IOS_CHROME_BROWSER_UI_BOOKMARKS_CELLS_LEGACY_BOOKMARK_PARENT_FOLDER_ITEM_H_
-
-#import <UIKit/UIKit.h>
-
-#import "ios/chrome/browser/ui/collection_view/cells/collection_view_item.h"
-#import "ios/third_party/material_components_ios/src/components/CollectionCells/src/MaterialCollectionCells.h"
-
-// Item to display the name of the parent folder of a bookmark node.
-@interface LegacyBookmarkParentFolderItem : CollectionViewItem
-
-// The title of the bookmark folder it represents.
-@property(nonatomic, copy) NSString* title;
-
-@end
-
-// Cell class associated to LegacyBookmarkParentFolderItem.
-@interface LegacyBookmarkParentFolderCell : MDCCollectionViewCell
-
-// Label that displays the item's title.
-@property(nonatomic, readonly, strong) UILabel* parentFolderNameLabel;
-
-@end
-
-#endif  // IOS_CHROME_BROWSER_UI_BOOKMARKS_CELLS_LEGACY_BOOKMARK_PARENT_FOLDER_ITEM_H_

ios/chrome/browser/ui/bookmarks/cells/legacy_bookmark_parent_folder_item.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/bookmarks/cells/legacy_bookmark_parent_folder_item.h"
-
-#import "ios/chrome/browser/ui/bookmarks/bookmark_utils_ios.h"
-#import "ios/chrome/browser/ui/icons/chrome_icon.h"
-#import "ios/chrome/browser/ui/uikit_ui_util.h"
-#include "ios/chrome/grit/ios_strings.h"
-#import "ios/third_party/material_components_ios/src/components/Typography/src/MaterialTypography.h"
-#include "ui/base/l10n/l10n_util_mac.h"
-
-#if !defined(__has_feature) || !__has_feature(objc_arc)
-#error "This file requires ARC support."
-#endif
-
-@interface LegacyBookmarkParentFolderCell ()
-@property(nonatomic, readwrite, strong) UILabel* parentFolderNameLabel;
-@property(nonatomic, strong) UILabel* decorationLabel;
-@end
-
-@implementation LegacyBookmarkParentFolderItem
-
-@synthesize title = _title;
-
-- (instancetype)initWithType:(NSInteger)type {
-  self = [super initWithType:type];
-  if (self) {
-    self.accessibilityIdentifier = @"Change Folder";
-    self.cellClass = [LegacyBookmarkParentFolderCell class];
-  }
-  return self;
-}
-
-#pragma mark CollectionViewItem
-
-- (void)configureCell:(LegacyBookmarkParentFolderCell*)cell {
-  [super configureCell:cell];
-  cell.parentFolderNameLabel.text = self.title;
-}
-
-@end
-
-@implementation LegacyBookmarkParentFolderCell
-
-@synthesize parentFolderNameLabel = _parentFolderNameLabel;
-@synthesize decorationLabel = _decorationLabel;
-
-- (instancetype)initWithFrame:(CGRect)frame {
-  self = [super initWithFrame:frame];
-  if (!self)
-    return nil;
-
-  self.isAccessibilityElement = YES;
-  self.accessibilityTraits |= UIAccessibilityTraitButton;
-
-  const CGFloat kHorizontalPadding = 15;
-  const CGFloat kVerticalPadding = 8;
-  const CGFloat kParentFolderLabelTopPadding = 7;
-
-  _decorationLabel = [[UILabel alloc] init];
-  _decorationLabel.translatesAutoresizingMaskIntoConstraints = NO;
-  _decorationLabel.text = l10n_util::GetNSString(IDS_IOS_BOOKMARK_GROUP_BUTTON);
-  _decorationLabel.font = [[MDCTypography fontLoader] regularFontOfSize:12];
-  _decorationLabel.textColor = bookmark_utils_ios::lightTextColor();
-  [self.contentView addSubview:_decorationLabel];
-
-  _parentFolderNameLabel = [[UILabel alloc] init];
-  _parentFolderNameLabel.translatesAutoresizingMaskIntoConstraints = NO;
-  _parentFolderNameLabel.font =
-      [[MDCTypography fontLoader] regularFontOfSize:16];
-  _parentFolderNameLabel.textColor =
-      [UIColor colorWithWhite:33.0 / 255.0 alpha:1.0];
-  _parentFolderNameLabel.textAlignment = NSTextAlignmentNatural;
-  [self.contentView addSubview:_parentFolderNameLabel];
-
-  UIImageView* navigationChevronImage = [[UIImageView alloc] init];
-  UIImage* image = TintImage([ChromeIcon chevronIcon], [UIColor grayColor]);
-  navigationChevronImage.image = image;
-  navigationChevronImage.translatesAutoresizingMaskIntoConstraints = NO;
-  [self.contentView addSubview:navigationChevronImage];
-
-  // Set up the constraints.
-  [NSLayoutConstraint activateConstraints:@[
-    [_decorationLabel.topAnchor constraintEqualToAnchor:self.topAnchor
-                                               constant:kVerticalPadding],
-    [_decorationLabel.leadingAnchor constraintEqualToAnchor:self.leadingAnchor
-                                                   constant:kHorizontalPadding],
-    [_parentFolderNameLabel.topAnchor
-        constraintEqualToAnchor:_decorationLabel.bottomAnchor
-                       constant:kParentFolderLabelTopPadding],
-    [_parentFolderNameLabel.leadingAnchor
-        constraintEqualToAnchor:_decorationLabel.leadingAnchor],
-    [navigationChevronImage.centerYAnchor
-        constraintEqualToAnchor:_parentFolderNameLabel.centerYAnchor],
-    [navigationChevronImage.leadingAnchor
-        constraintEqualToAnchor:_parentFolderNameLabel.trailingAnchor],
-    [navigationChevronImage.widthAnchor
-        constraintEqualToConstant:navigationChevronImage.image.size.width],
-    [navigationChevronImage.trailingAnchor
-        constraintEqualToAnchor:self.trailingAnchor
-                       constant:-kHorizontalPadding],
-  ]];
-
-  self.shouldHideSeparator = YES;
-  return self;
-}
-
-- (void)prepareForReuse {
-  [super prepareForReuse];
-  self.parentFolderNameLabel.text = nil;
-}
-
-- (NSString*)accessibilityLabel {
-  return self.parentFolderNameLabel.text;
-}
-
-- (NSString*)accessibilityHint {
-  return l10n_util::GetNSString(
-      IDS_IOS_BOOKMARK_EDIT_PARENT_FOLDER_BUTTON_HINT);
-}
-
-@end

ios/chrome/browser/ui/bookmarks/cells/legacy_bookmark_text_field_item.h

-// 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.
-
-#ifndef IOS_CHROME_BROWSER_UI_BOOKMARKS_CELLS_LEGACY_BOOKMARK_TEXT_FIELD_ITEM_H_
-#define IOS_CHROME_BROWSER_UI_BOOKMARKS_CELLS_LEGACY_BOOKMARK_TEXT_FIELD_ITEM_H_
-
-#import <UIKit/UIKit.h>
-
-#import "ios/chrome/browser/ui/collection_view/cells/collection_view_item.h"
-#import "ios/third_party/material_components_ios/src/components/CollectionCells/src/MaterialCollectionCells.h"
-
-@class LegacyBookmarkTextFieldItem;
-@protocol TextFieldStyling;
-
-// Delegates the cell's text field's events.
-@protocol LegacyBookmarkTextFieldItemDelegate<UITextFieldDelegate>
-
-// Called when the |text| of the item was changed via the textfield. The item's
-// |text| is up-to-date when this is called.
-- (void)textDidChangeForItem:(LegacyBookmarkTextFieldItem*)item;
-
-@end
-
-@interface LegacyBookmarkTextFieldItem : CollectionViewItem
-
-// The text field content.
-@property(nonatomic, copy) NSString* text;
-
-// The text field placeholder.
-@property(nonatomic, copy) NSString* placeholder;
-
-// Receives the text field events.
-@property(nonatomic, weak) id<LegacyBookmarkTextFieldItemDelegate> delegate;
-
-@end
-
-@interface LegacyBookmarkTextFieldCell : MDCCollectionViewCell
-
-// Text field to display the title or the URL of the bookmark node.
-@property(nonatomic, readonly, strong) UITextField<TextFieldStyling>* textField;
-
-@end
-
-#endif  // IOS_CHROME_BROWSER_UI_BOOKMARKS_CELLS_LEGACY_BOOKMARK_TEXT_FIELD_ITEM_H_

ios/chrome/browser/ui/bookmarks/cells/legacy_bookmark_text_field_item.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/bookmarks/cells/legacy_bookmark_text_field_item.h"
-
-#include "base/logging.h"
-#import "ios/chrome/browser/ui/bookmarks/bookmark_utils_ios.h"
-#import "ios/public/provider/chrome/browser/chrome_browser_provider.h"
-#import "ios/public/provider/chrome/browser/ui/text_field_styling.h"
-
-#if !defined(__has_feature) || !__has_feature(objc_arc)
-#error "This file requires ARC support."
-#endif
-
-@interface LegacyBookmarkTextFieldCell ()
-@property(nonatomic, readwrite, strong)
-    UITextField<TextFieldStyling>* textField;
-@end
-
-@implementation LegacyBookmarkTextFieldItem
-
-@synthesize text = _text;
-@synthesize placeholder = _placeholder;
-@synthesize delegate = _delegate;
-
-- (instancetype)initWithType:(NSInteger)type {
-  self = [super initWithType:type];
-  if (self) {
-    self.cellClass = [LegacyBookmarkTextFieldCell class];
-  }
-  return self;
-}
-
-#pragma mark CollectionViewItem
-
-- (void)configureCell:(LegacyBookmarkTextFieldCell*)cell {
-  [super configureCell:cell];
-  cell.textField.text = self.text;
-  cell.textField.placeholder = self.placeholder;
-  cell.textField.tag = self.type;
-  [cell.textField addTarget:self
-                     action:@selector(textFieldDidChange:)
-           forControlEvents:UIControlEventEditingChanged];
-  cell.textField.delegate = self.delegate;
-  cell.textField.accessibilityLabel = self.text;
-  cell.textField.accessibilityIdentifier =
-      [NSString stringWithFormat:@"%@_textField", self.accessibilityIdentifier];
-}
-
-#pragma mark UIControlEventEditingChanged
-
-- (void)textFieldDidChange:(UITextField*)textField {
-  DCHECK_EQ(textField.tag, self.type);
-  self.text = textField.text;
-  [self.delegate textDidChangeForItem:self];
-}
-
-@end
-
-@implementation LegacyBookmarkTextFieldCell
-
-@synthesize textField = _textField;
-
-- (instancetype)initWithFrame:(CGRect)frame {
-  self = [super initWithFrame:frame];
-  if (self) {
-    _textField =
-        ios::GetChromeBrowserProvider()->CreateStyledTextField(CGRectZero);
-    _textField.translatesAutoresizingMaskIntoConstraints = NO;
-    _textField.textColor = bookmark_utils_ios::darkTextColor();
-    _textField.clearButtonMode = UITextFieldViewModeWhileEditing;
-    _textField.placeholderStyle =
-        TextFieldStylingPlaceholderFloatingPlaceholder;
-    [self.contentView addSubview:_textField];
-    const CGFloat kHorizontalPadding = 15;
-    const CGFloat kTopPadding = 8;
-    [NSLayoutConstraint activateConstraints:@[
-      [_textField.leadingAnchor constraintEqualToAnchor:self.leadingAnchor
-                                               constant:kHorizontalPadding],
-      [_textField.topAnchor constraintEqualToAnchor:self.topAnchor
-                                           constant:kTopPadding],
-      [_textField.trailingAnchor constraintEqualToAnchor:self.trailingAnchor
-                                                constant:-kHorizontalPadding],
-    ]];
-
-    self.shouldHideSeparator = YES;
-  }
-  return self;
-}
-
-- (void)prepareForReuse {
-  [super prepareForReuse];
-  [self.textField resignFirstResponder];
-  [self.textField removeTarget:nil
-                        action:NULL
-              forControlEvents:UIControlEventAllEvents];
-  self.textField.delegate = nil;
-  self.textField.text = nil;
-  self.textField.textValidator = nil;
-}
-
-@end