[ios] WebStateList owns all WebState it manages.

ios/chrome/browser/tabs/tab.h

 // Copyright 2012 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_TABS_TAB_H_
 #define IOS_CHROME_BROWSER_TABS_TAB_H_
 
 #import <UIKit/UIKit.h>
 
 #include <memory>
@@ skipping 41 matching lines @@
 
 namespace sessions {
 class SerializedNavigationEntry;
 struct SessionTab;
 }
 
 namespace web {
 class NavigationItem;
 class NavigationManager;
 class NavigationManagerImpl;
-struct Referrer;
 class WebState;
 }
 
 // Notification sent by a Tab when it starts to load a new URL. This
 // notification must only be used for crash reporting as it is also sent for
 // pre-rendered tabs.
 extern NSString* const kTabUrlStartedLoadingNotificationForCrashReporting;
 
 // Notification sent by a Tab when it is likely about to start loading a new
 // URL. This notification must only be used for crash reporting as it is also
@@ skipping 39 matching lines @@
 @property(nonatomic, readonly) NSString* title;
 
 // Original page title or nil if the page did not provide one.
 @property(nonatomic, readonly) NSString* originalTitle;
 
 @property(nonatomic, readonly) NSString* urlDisplayString;
 
 // ID associated with this tab.
 @property(nonatomic, readonly) NSString* tabId;
 
-// ID of the opener of this tab.
-@property(nonatomic, readonly) NSString* openerID;
-
-// NavigationIndex of the opener of this tab.
-@property(nonatomic, readonly) NSInteger openerNavigationIndex;
-
 // |YES| if snapshot overlay should load from the grey image cache.
 @property(nonatomic, assign) BOOL useGreyImageCache;
 
 // The Webstate associated with this Tab.
 @property(nonatomic, readonly) web::WebState* webState;
 
 @property(nonatomic, readonly) CRWWebController* webController;
 @property(nonatomic, readonly) PasswordController* passwordController;
 @property(nonatomic, readonly) BOOL canGoBack;
 @property(nonatomic, readonly) BOOL canGoForward;
@@ skipping 21 matching lines @@
 
 // TODO(crbug.com/661663): Should this property abstract away the concept of
 // prerendering?  Maybe this can move to the TabDelegate interface.
 @property(nonatomic, assign) BOOL isPrerenderTab;
 @property(nonatomic, assign) BOOL isLinkLoadingPrerenderTab;
 @property(nonatomic, assign) BOOL isVoiceSearchResultsTab;
 
 // |YES| if the tab has finished loading.
 @property(nonatomic, readonly) BOOL loadFinished;
 
-// Creates a new tab with the given state. |opener| is nil unless another tab
-// is conceptually the parent of this tab. |openedByDOM| is YES if the page was
-// opened by DOM. |model| and |browserState| must not be nil.
-- (instancetype)initWithBrowserState:(ios::ChromeBrowserState*)browserState
-                              opener:(Tab*)opener
-                         openedByDOM:(BOOL)openedByDOM
-                               model:(TabModel*)parentModel;
-
-// Create a new tab with given web state and tab model. All must be non-nil.
-- (instancetype)initWithWebState:(std::unique_ptr<web::WebState>)webState
-                           model:(TabModel*)parentModel;
-
-// Create a new tab with given web state and tab model, optionally attaching
-// the tab helpers (controlled by |attachTabHelpers|). All must be non-nil.
-- (instancetype)initWithWebState:(std::unique_ptr<web::WebState>)webState
-                           model:(TabModel*)parentModel
-                attachTabHelpers:(BOOL)attachTabHelpers
-    NS_DESIGNATED_INITIALIZER;
+// Creates a new Tab with the given WebState.
+- (instancetype)initWithWebState:(web::WebState*)webState;
 
 - (instancetype)init NS_UNAVAILABLE;
 
-// Creates a new Tab instance loading |url| with |transition|, configured
-// with no TabModel. |opener| may be nil, and behaves exactly as for
-// -initWithBrowserState:opener:openedByDOM:model. |configuration| is a block
-// that will be run before |url| starts loading, and is the correct place to set
-// properties and delegates on the tab. Calling code must take ownership of the
-// tab -- this is particularly important with Tab instances, because they will
-// fail a DCHECK if they are deallocated without -close being called.
-+ (Tab*)preloadingTabWithBrowserState:(ios::ChromeBrowserState*)browserState
-                                  url:(const GURL&)url
-                             referrer:(const web::Referrer&)referrer
-                           transition:(ui::PageTransition)transition
-                             provider:(id<CRWNativeContentProvider>)provider
-                               opener:(Tab*)opener
-                     desktopUserAgent:(BOOL)desktopUserAgent
-                        configuration:(void (^)(Tab*))configuration;
-
 // Sets the parent tab model for this tab.  Can only be called if the tab does
 // not already have a parent tab model set.
 // TODO(crbug.com/228575): Create a delegate interface and remove this.
 - (void)setParentTabModel:(TabModel*)model;
 
 // Replace the content of the tab with the content described by |SessionTab|.
 - (void)loadSessionTab:(const sessions::SessionTab*)sessionTab;
 
 // Stop the page loading.
 // Equivalent to the user pressing 'stop', or a window.stop() command.
@@ skipping 14 matching lines @@
 
 // The view that generates print data when printing. It can be nil when printing
 // is not supported with this tab. It can be different from |Tab view|.
 - (UIView*)viewForPrinting;
 
 // Halts the tab's network activity without closing it. This should only be
 // called during shutdown, since the tab will be unusable but still present
 // after this method completes.
 - (void)terminateNetworkActivity;
 
-// Starts the tab's shutdown sequence.
-- (void)close;
-
 // Dismisses all modals owned by the tab.
 - (void)dismissModals;
 
 // Returns the NavigationManager for this tab's WebState. Requires WebState to
 // be populated. Can return null.
 // TODO(crbug.com/620465): remove navigationManagerImpl once Tab no longer uses
 // nor exposes private ios/web/ API.
 - (web::NavigationManager*)navigationManager;
 - (web::NavigationManagerImpl*)navigationManagerImpl;
 
@@ skipping 92 matching lines @@
 // Evaluates U2F result.
 - (void)evaluateU2FResultFromURL:(const GURL&)url;
 
 // Cancels prerendering. It is an error to call this on anything except a
 // prerender tab (where |isPrerenderTab| is set to YES).
 - (void)discardPrerender;
 
 @end
 
 #endif  // IOS_CHROME_BROWSER_TABS_TAB_H_