[ios] Fix uses of ios::ChromeBrowserState in /ios/chrome/browser/ui/bookmarks

The ChromeBrowserState has been moved from the "ios" namespace
to the global namespace by http://crrev.com/c/2014913. Fix the
uses from ios::ChromeBrowserState to ChromeBrowserState.

Also remove includes of chrome_browser_state_forward.h and use
a simple forward declaration instead (since the old name is no
longer necessary).

This CL was uploaded by git cl split.

R=noyau@chromium.org

Bug: 1042208
Change-Id: Ic10c1f5b1f65ac65d14cea64f0ad688aef5eb971
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2014973Reviewed-by: Eric Noyau <noyau@chromium.org>
Commit-Queue: Sylvain Defresne <sdefresne@chromium.org>
Cr-Commit-Position: refs/heads/master@{#734989}

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

@@ -30,7 +30,7 @@
 #pragma mark - Public Interface
 
 + (void)clearBookmarksPositionCache {
-  ios::ChromeBrowserState* browser_state =
+  ChromeBrowserState* browser_state =
       chrome_test_util::GetOriginalBrowserState();
   [BookmarkPathCache
       clearBookmarkTopMostRowCacheWithPrefService:browser_state->GetPrefs()];
@@ -283,7 +283,7 @@
 }
 
 + (NSError*)verifyPromoAlreadySeen:(BOOL)seen {
-  ios::ChromeBrowserState* browserState =
+  ChromeBrowserState* browserState =
       chrome_test_util::GetOriginalBrowserState();
   PrefService* prefs = browserState->GetPrefs();
   if (prefs->GetBoolean(prefs::kIosBookmarkPromoAlreadySeen) == seen) {

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

@@ -6,12 +6,12 @@
 
 #import <UIKit/UIKit.h>
 
-#include "ios/chrome/browser/browser_state/chrome_browser_state_forward.h"
 #import "ios/chrome/browser/ui/table_view/chrome_table_view_controller.h"
 
 @class BookmarkEditViewController;
 @class BookmarkFolderViewController;
 @protocol BrowserCommands;
+class ChromeBrowserState;
 
 namespace bookmarks {
 class BookmarkNode;
@@ -52,7 +52,7 @@ class BookmarkNode;
 // |bookmark|: mustn't be NULL at initialization time. It also mustn't be a
 //             folder.
 - (instancetype)initWithBookmark:(const bookmarks::BookmarkNode*)bookmark
-                    browserState:(ios::ChromeBrowserState*)browserState
+                    browserState:(ChromeBrowserState*)browserState
                       dispatcher:(id<BrowserCommands>)dispatcher
     NS_DESIGNATED_INITIALIZER;
 - (instancetype)initWithStyle:(UITableViewStyle)style NS_UNAVAILABLE;

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

@@ -105,7 +105,7 @@ const CGFloat kEstimatedTableSectionFooterHeight = 40;
 // Redefined to be readwrite.
 @property(nonatomic, strong) BookmarkFolderViewController* folderViewController;
 
-@property(nonatomic, assign) ios::ChromeBrowserState* browserState;
+@property(nonatomic, assign) ChromeBrowserState* browserState;
 
 // Dispatcher for sending commands.
 @property(nonatomic, readonly, weak) id<BrowserCommands> dispatcher;
@@ -179,7 +179,7 @@ const CGFloat kEstimatedTableSectionFooterHeight = 40;
 #pragma mark - Lifecycle
 
 - (instancetype)initWithBookmark:(const BookmarkNode*)bookmark
-                    browserState:(ios::ChromeBrowserState*)browserState
+                    browserState:(ChromeBrowserState*)browserState
                       dispatcher:(id<BrowserCommands>)dispatcher {
   DCHECK(bookmark);
   DCHECK(browserState);

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

@@ -6,11 +6,11 @@
 
 #import <UIKit/UIKit.h>
 
-#include "ios/chrome/browser/browser_state/chrome_browser_state_forward.h"
 #import "ios/chrome/browser/ui/table_view/chrome_table_view_controller.h"
 
 @class BookmarkFolderEditorViewController;
 @protocol BrowserCommands;
+class ChromeBrowserState;
 
 namespace bookmarks {
 class BookmarkModel;
@@ -60,7 +60,7 @@ class BookmarkNode;
 + (instancetype)
     folderEditorWithBookmarkModel:(bookmarks::BookmarkModel*)bookmarkModel
                            folder:(const bookmarks::BookmarkNode*)folder
-                     browserState:(ios::ChromeBrowserState*)browserState
+                     browserState:(ChromeBrowserState*)browserState
                        dispatcher:(id<BrowserCommands>)dispatcher;
 
 - (instancetype)initWithStyle:(UITableViewStyle)style NS_UNAVAILABLE;

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

@@ -64,7 +64,7 @@ typedef NS_ENUM(NSInteger, ItemType) {
 }
 @property(nonatomic, assign) BOOL editingExistingFolder;
 @property(nonatomic, assign) bookmarks::BookmarkModel* bookmarkModel;
-@property(nonatomic, assign) ios::ChromeBrowserState* browserState;
+@property(nonatomic, assign) ChromeBrowserState* browserState;
 @property(nonatomic, assign) const BookmarkNode* folder;
 @property(nonatomic, strong) BookmarkFolderViewController* folderViewController;
 @property(nonatomic, assign) const BookmarkNode* parentFolder;
@@ -122,11 +122,11 @@ typedef NS_ENUM(NSInteger, ItemType) {
   return folderCreator;
 }
 
-+ (instancetype)
-    folderEditorWithBookmarkModel:(bookmarks::BookmarkModel*)bookmarkModel
-                           folder:(const BookmarkNode*)folder
-                     browserState:(ios::ChromeBrowserState*)browserState
-                       dispatcher:(id<BrowserCommands>)dispatcher {
++ (instancetype)folderEditorWithBookmarkModel:
+                    (bookmarks::BookmarkModel*)bookmarkModel
+                                       folder:(const BookmarkNode*)folder
+                                 browserState:(ChromeBrowserState*)browserState
+                                   dispatcher:(id<BrowserCommands>)dispatcher {
   DCHECK(folder);
   DCHECK(!bookmarkModel->is_permanent_node(folder));
   DCHECK(browserState);

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

@@ -7,8 +7,7 @@
 
 #import <Foundation/Foundation.h>
 
-#include "ios/chrome/browser/browser_state/chrome_browser_state_forward.h"
-
+class ChromeBrowserState;
 @protocol BookmarkHomeConsumer;
 @class BookmarkHomeSharedState;
 
@@ -19,7 +18,7 @@
 @property(nonatomic, weak) id<BookmarkHomeConsumer> consumer;
 
 - (instancetype)initWithSharedState:(BookmarkHomeSharedState*)sharedState
-                       browserState:(ios::ChromeBrowserState*)browserState
+                       browserState:(ChromeBrowserState*)browserState
     NS_DESIGNATED_INITIALIZER;
 - (instancetype)init NS_UNAVAILABLE;
 

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

@@ -52,7 +52,7 @@ const int kMaxBookmarksSearchResults = 50;
 @property(nonatomic, strong) BookmarkHomeSharedState* sharedState;
 
 // The browser state for this mediator.
-@property(nonatomic, assign) ios::ChromeBrowserState* browserState;
+@property(nonatomic, assign) ChromeBrowserState* browserState;
 
 // The controller managing the display of the promo cell and the promo view
 // controller.
@@ -67,7 +67,7 @@ const int kMaxBookmarksSearchResults = 50;
 @synthesize sharedState = _sharedState;
 
 - (instancetype)initWithSharedState:(BookmarkHomeSharedState*)sharedState
-                       browserState:(ios::ChromeBrowserState*)browserState {
+                       browserState:(ChromeBrowserState*)browserState {
   if ((self = [super init])) {
     _sharedState = sharedState;
     _browserState = browserState;

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

@@ -10,7 +10,6 @@
 #include <set>
 #include <vector>
 
-#include "ios/chrome/browser/browser_state/chrome_browser_state_forward.h"
 #import "ios/chrome/browser/ui/table_view/chrome_table_view_controller.h"
 
 @protocol ApplicationCommands;
@@ -19,6 +18,7 @@
 namespace bookmarks {
 class BookmarkNode;
 }  // namespace bookmarks
+class ChromeBrowserState;
 class GURL;
 class WebStateList;
 
@@ -50,7 +50,7 @@ class WebStateList;
 
 // Initializers.
 - (instancetype)
-    initWithBrowserState:(ios::ChromeBrowserState*)browserState
+    initWithBrowserState:(ChromeBrowserState*)browserState
               dispatcher:(id<ApplicationCommands, BrowserCommands>)dispatcher
             webStateList:(WebStateList*)webStateList NS_DESIGNATED_INITIALIZER;
 - (instancetype)initWithStyle:(UITableViewStyle)tableViewStyle NS_UNAVAILABLE;

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

@@ -134,7 +134,7 @@ std::vector<GURL> GetUrlsToOpen(const std::vector<const BookmarkNode*>& nodes) {
 @property(nonatomic, assign) bookmarks::BookmarkModel* bookmarks;
 
 // The user's browser state model used.
-@property(nonatomic, assign) ios::ChromeBrowserState* browserState;
+@property(nonatomic, assign) ChromeBrowserState* browserState;
 
 // The mediator that provides data for this view controller.
 @property(nonatomic, strong) BookmarkHomeMediator* mediator;
@@ -206,7 +206,7 @@ std::vector<GURL> GetUrlsToOpen(const std::vector<const BookmarkNode*>& nodes) {
 #pragma mark - Initializer
 
 - (instancetype)
-    initWithBrowserState:(ios::ChromeBrowserState*)browserState
+    initWithBrowserState:(ChromeBrowserState*)browserState
               dispatcher:(id<ApplicationCommands, BrowserCommands>)dispatcher
             webStateList:(WebStateList*)webStateList {
   DCHECK(browserState);

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

@@ -6,12 +6,13 @@
 
 #import <UIKit/UIKit.h>
 
-#include "ios/chrome/browser/browser_state/chrome_browser_state_forward.h"
 
 @protocol ApplicationCommands;
 @protocol BrowserCommands;
 @protocol BookmarkInteractionControllerDelegate;
 
+class ChromeBrowserState;
+
 namespace bookmarks {
 class BookmarkNode;
 }
@@ -30,7 +31,7 @@ class WebStateList;
 @property(nonatomic, weak) id<BookmarkInteractionControllerDelegate> delegate;
 
 - (instancetype)
-    initWithBrowserState:(ios::ChromeBrowserState*)browserState
+    initWithBrowserState:(ChromeBrowserState*)browserState
         parentController:(UIViewController*)parentController
               dispatcher:(id<ApplicationCommands, BrowserCommands>)dispatcher
             webStateList:(WebStateList*)webStateList NS_DESIGNATED_INITIALIZER;

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

@@ -72,11 +72,11 @@ enum class PresentedState {
     BookmarkHomeViewControllerDelegate,
     TableViewPresentationControllerDelegate> {
   // The browser state of the current user.
-  ios::ChromeBrowserState* _currentBrowserState;  // weak
+  ChromeBrowserState* _currentBrowserState;  // weak
 
   // The browser state to use, might be different from _currentBrowserState if
   // it is incognito.
-  ios::ChromeBrowserState* _browserState;  // weak
+  ChromeBrowserState* _browserState;  // weak
 
   // The parent controller on top of which the UI needs to be presented.
   __weak UIViewController* _parentController;
@@ -156,7 +156,7 @@ enum class PresentedState {
 @synthesize mediator = _mediator;
 
 - (instancetype)
-    initWithBrowserState:(ios::ChromeBrowserState*)browserState
+    initWithBrowserState:(ChromeBrowserState*)browserState
         parentController:(UIViewController*)parentController
               dispatcher:(id<ApplicationCommands, BrowserCommands>)dispatcher
             webStateList:(WebStateList*)webStateList {

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

@@ -7,7 +7,7 @@
 
 #import <UIKit/UIKit.h>
 
-#include "ios/chrome/browser/browser_state/chrome_browser_state_forward.h"
+class ChromeBrowserState;
 
 namespace bookmarks {
 class BookmarkNode;
@@ -24,7 +24,7 @@ class GURL;
 @interface BookmarkMediator : NSObject
 
 - (instancetype)init NS_UNAVAILABLE;
-- (instancetype)initWithBrowserState:(ios::ChromeBrowserState*)browserState
+- (instancetype)initWithBrowserState:(ChromeBrowserState*)browserState
     NS_DESIGNATED_INITIALIZER;
 
 // Registers the feature preferences.
@@ -33,9 +33,9 @@ class GURL;
 // Accesses the default folder for bookmarks. The default folder is Mobile
 // Bookmarks.
 + (const bookmarks::BookmarkNode*)folderForNewBookmarksInBrowserState:
-    (ios::ChromeBrowserState*)browserState;
+    (ChromeBrowserState*)browserState;
 + (void)setFolderForNewBookmarks:(const bookmarks::BookmarkNode*)folder
-                  inBrowserState:(ios::ChromeBrowserState*)browserState;
+                  inBrowserState:(ChromeBrowserState*)browserState;
 
 // Adds a bookmark with a |title| and a |URL| and display a snackbar with an
 // |editAction|. Returns a message to be displayed after the Bookmark has been

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

@@ -37,7 +37,7 @@ const int64_t kLastUsedFolderNone = -1;
 @interface BookmarkMediator ()
 
 // BrowserState for this mediator.
-@property(nonatomic, assign) ios::ChromeBrowserState* browserState;
+@property(nonatomic, assign) ChromeBrowserState* browserState;
 
 @end
 
@@ -51,7 +51,7 @@ const int64_t kLastUsedFolderNone = -1;
 }
 
 + (const BookmarkNode*)folderForNewBookmarksInBrowserState:
-    (ios::ChromeBrowserState*)browserState {
+    (ChromeBrowserState*)browserState {
   bookmarks::BookmarkModel* bookmarks =
       ios::BookmarkModelFactory::GetForBrowserState(browserState);
   const BookmarkNode* defaultFolder = bookmarks->mobile_node();
@@ -70,13 +70,13 @@ const int64_t kLastUsedFolderNone = -1;
 }
 
 + (void)setFolderForNewBookmarks:(const BookmarkNode*)folder
-                  inBrowserState:(ios::ChromeBrowserState*)browserState {
+                  inBrowserState:(ChromeBrowserState*)browserState {
   DCHECK(folder && folder->is_folder());
   browserState->GetPrefs()->SetInt64(prefs::kIosBookmarkFolderDefault,
                                      folder->id());
 }
 
-- (instancetype)initWithBrowserState:(ios::ChromeBrowserState*)browserState {
+- (instancetype)initWithBrowserState:(ChromeBrowserState*)browserState {
   self = [super init];
   if (self) {
     _browserState = browserState;

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

@@ -7,8 +7,7 @@
 
 #import <UIKit/UIKit.h>
 
-#include "ios/chrome/browser/browser_state/chrome_browser_state_forward.h"
-
+class ChromeBrowserState;
 @protocol SigninPresenter;
 @class SigninPromoViewConfigurator;
 @class SigninPromoViewMediator;
@@ -38,7 +37,7 @@
 
 @property(nonatomic, readonly) SigninPromoViewMediator* signinPromoViewMediator;
 
-- (instancetype)initWithBrowserState:(ios::ChromeBrowserState*)browserState
+- (instancetype)initWithBrowserState:(ChromeBrowserState*)browserState
                             delegate:
                                 (id<BookmarkPromoControllerDelegate>)delegate
                            presenter:(id<SigninPresenter>)presenter;

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

@@ -22,7 +22,7 @@
 @interface BookmarkPromoController ()<SigninPromoViewConsumer,
                                       IdentityManagerObserverBridgeDelegate> {
   bool _isIncognito;
-  ios::ChromeBrowserState* _browserState;
+  ChromeBrowserState* _browserState;
   std::unique_ptr<signin::IdentityManagerObserverBridge>
       _identityManagerObserverBridge;
 }
@@ -39,7 +39,7 @@
 @synthesize shouldShowSigninPromo = _shouldShowSigninPromo;
 @synthesize signinPromoViewMediator = _signinPromoViewMediator;
 
-- (instancetype)initWithBrowserState:(ios::ChromeBrowserState*)browserState
+- (instancetype)initWithBrowserState:(ChromeBrowserState*)browserState
                             delegate:
                                 (id<BookmarkPromoControllerDelegate>)delegate
                            presenter:(id<SigninPresenter>)presenter {

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

@@ -13,8 +13,8 @@
 
 #include "base/strings/string16.h"
 #include "base/time/time.h"
-#include "ios/chrome/browser/browser_state/chrome_browser_state_forward.h"
 
+class ChromeBrowserState;
 class GURL;
 @class MDCSnackbarMessage;
 
@@ -57,7 +57,7 @@ MDCSnackbarMessage* CreateOrUpdateBookmarkWithUndoToast(
     const GURL& url,
     const bookmarks::BookmarkNode* folder,
     bookmarks::BookmarkModel* bookmark_model,
-    ios::ChromeBrowserState* browser_state);
+    ChromeBrowserState* browser_state);
 
 // Updates a bookmark node position, and returns a snackbar with an undo action.
 // Returns nil if the operation wasn't successful or there's nothing to undo.
@@ -66,7 +66,7 @@ MDCSnackbarMessage* UpdateBookmarkPositionWithUndoToast(
     const bookmarks::BookmarkNode* folder,
     int position,
     bookmarks::BookmarkModel* bookmark_model,
-    ios::ChromeBrowserState* browser_state);
+    ChromeBrowserState* browser_state);
 
 // Deletes all bookmarks in |model| that are in |bookmarks|, and returns a
 // snackbar with an undo action. Returns nil if the operation wasn't successful
@@ -74,7 +74,7 @@ MDCSnackbarMessage* UpdateBookmarkPositionWithUndoToast(
 MDCSnackbarMessage* DeleteBookmarksWithUndoToast(
     const std::set<const bookmarks::BookmarkNode*>& bookmarks,
     bookmarks::BookmarkModel* model,
-    ios::ChromeBrowserState* browser_state);
+    ChromeBrowserState* browser_state);
 
 // Deletes all nodes in |bookmarks|.
 void DeleteBookmarks(const std::set<const bookmarks::BookmarkNode*>& bookmarks,
@@ -87,7 +87,7 @@ MDCSnackbarMessage* MoveBookmarksWithUndoToast(
     const std::set<const bookmarks::BookmarkNode*>& bookmarks,
     bookmarks::BookmarkModel* model,
     const bookmarks::BookmarkNode* folder,
-    ios::ChromeBrowserState* browser_state);
+    ChromeBrowserState* browser_state);
 
 // Move all |bookmarks| to the given |folder|.
 // Returns whether this method actually moved bookmarks (for example, only

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

@@ -151,7 +151,7 @@ MDCSnackbarMessage* CreateOrUpdateBookmarkWithUndoToast(
     const GURL& url,
     const BookmarkNode* folder,
     bookmarks::BookmarkModel* bookmark_model,
-    ios::ChromeBrowserState* browser_state) {
+    ChromeBrowserState* browser_state) {
   DCHECK(!node || node->is_url());
   base::string16 titleString = base::SysNSStringToUTF16(title);
 
@@ -200,7 +200,7 @@ MDCSnackbarMessage* UpdateBookmarkPositionWithUndoToast(
     const bookmarks::BookmarkNode* folder,
     int position,
     bookmarks::BookmarkModel* bookmark_model,
-    ios::ChromeBrowserState* browser_state) {
+    ChromeBrowserState* browser_state) {
   DCHECK(node);
   DCHECK(folder);
   DCHECK(!folder->HasAncestor(node));
@@ -240,7 +240,7 @@ void DeleteBookmarks(const std::set<const BookmarkNode*>& bookmarks,
 MDCSnackbarMessage* DeleteBookmarksWithUndoToast(
     const std::set<const BookmarkNode*>& nodes,
     bookmarks::BookmarkModel* model,
-    ios::ChromeBrowserState* browser_state) {
+    ChromeBrowserState* browser_state) {
   size_t nodeCount = nodes.size();
   DCHECK_GT(nodeCount, 0u);
 
@@ -293,7 +293,7 @@ MDCSnackbarMessage* MoveBookmarksWithUndoToast(
     const std::set<const BookmarkNode*>& nodes,
     bookmarks::BookmarkModel* model,
     const BookmarkNode* folder,
-    ios::ChromeBrowserState* browser_state) {
+    ChromeBrowserState* browser_state) {
   size_t nodeCount = nodes.size();
   DCHECK_GT(nodeCount, 0u);
 

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

@@ -8,9 +8,10 @@
 #import <Foundation/Foundation.h>
 
 #include "base/macros.h"
-#include "ios/chrome/browser/browser_state/chrome_browser_state_forward.h"
 #import "ios/chrome/browser/sync/sync_observer_bridge.h"
 
+class ChromeBrowserState;
+
 namespace signin {
 class IdentityManager;
 }
@@ -22,7 +23,7 @@ namespace sync_bookmarks {
 class SyncedBookmarksObserverBridge : public SyncObserverBridge {
  public:
   SyncedBookmarksObserverBridge(id<SyncObserverModelBridge> delegate,
-                                ios::ChromeBrowserState* browserState);
+                                ChromeBrowserState* browserState);
   ~SyncedBookmarksObserverBridge() override;
   // Returns true if user is signed in.
   bool IsSignedIn();
@@ -31,7 +32,7 @@ class SyncedBookmarksObserverBridge : public SyncObserverBridge {
 
  private:
   signin::IdentityManager* identity_manager_;
-  ios::ChromeBrowserState* browser_state_;
+  ChromeBrowserState* browser_state_;
 
   DISALLOW_COPY_AND_ASSIGN(SyncedBookmarksObserverBridge);
 };

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

@@ -22,7 +22,7 @@ namespace sync_bookmarks {
 
 SyncedBookmarksObserverBridge::SyncedBookmarksObserverBridge(
     id<SyncObserverModelBridge> delegate,
-    ios::ChromeBrowserState* browserState)
+    ChromeBrowserState* browserState)
     : SyncObserverBridge(
           delegate,
           ProfileSyncServiceFactory::GetForBrowserState(browserState)),

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

@@ -7,7 +7,7 @@
 
 #import <Foundation/Foundation.h>
 
-#include "ios/chrome/browser/browser_state/chrome_browser_state_forward.h"
+class ChromeBrowserState;
 
 // This object is a convenience ObjC wrapper around UndoManager.
 // On construction, it registers itself as an observer of the UndoManager.
@@ -23,7 +23,7 @@
 @interface UndoManagerWrapper : NSObject
 
 // Designated initializer.
-- (instancetype)initWithBrowserState:(ios::ChromeBrowserState*)browserState;
+- (instancetype)initWithBrowserState:(ChromeBrowserState*)browserState;
 
 // Subsequent changes to the BookmarkModel are grouped together so that a single
 // undo will revert all changes.

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

@@ -27,7 +27,7 @@
 @synthesize hasUndoManagerChanged = _hasUndoManagerChanged;
 @synthesize undoManager = _undoManager;
 
-- (instancetype)initWithBrowserState:(ios::ChromeBrowserState*)browserState {
+- (instancetype)initWithBrowserState:(ChromeBrowserState*)browserState {
   self = [super init];
   if (self) {
     _undoManager =