Removed xCallbackParameters from CRWSessionController class.

ios/web/navigation/crw_session_controller.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_WEB_NAVIGATION_CRW_SESSION_CONTROLLER_H_
 #define IOS_WEB_NAVIGATION_CRW_SESSION_CONTROLLER_H_
 
 #import <Foundation/Foundation.h>
 #include <vector>
 
 #include "ui/base/page_transition_types.h"
 #include "url/gurl.h"
 
 @class CRWSessionEntry;
 @class CRWSessionCertificatePolicyManager;
-@class XCallbackParameters;
 
 namespace web {
 class NavigationManagerImpl;
 struct Referrer;
 struct SSLStatus;
 }
 
 // A CRWSessionController is similar to a NavigationController object in desktop
 // Chrome. It maintains information needed to save/restore a tab with its
 // complete session history. There is one of these for each tab.
@@ skipping 20 matching lines @@
 @property(nonatomic, readonly, strong) CRWSessionEntry* pendingEntry;
 // Returns the transient entry, if any.
 @property(nonatomic, readonly, strong) CRWSessionEntry* transientEntry;
 // Returns the last committed entry.
 @property(nonatomic, readonly, strong) CRWSessionEntry* lastCommittedEntry;
 // Returns the previous entry in the session list, or nil if there isn't any.
 @property(nonatomic, readonly, strong) CRWSessionEntry* previousEntry;
 @property(nonatomic, assign) NSTimeInterval lastVisitedTimestamp;
 @property(nonatomic, readonly, copy) NSString* openerId;
 @property(nonatomic, readonly, assign) NSInteger openerNavigationIndex;
-@property(nonatomic, strong) XCallbackParameters* xCallbackParameters;
 
 // CRWSessionController doesn't have public constructors. New
 // CRWSessionControllers are created by deserialization, or via a
 // NavigationManager.
 
 // Sets the corresponding NavigationManager.
 - (void)setNavigationManager:(web::NavigationManagerImpl*)navigationManager;
 
 // Add a new entry with the given url, referrer, and navigation type, making it
 // the current entry. If |url| is the same as the current entry's url, this
@@ skipping 82 matching lines @@
 // |entries_| is empty.
 - (CRWSessionEntry*)lastUserEntry;
 
 // Set |useDesktopUserAgentForNextPendingEntry_| to YES if there is no pending
 // entry, otherwise set |useDesktopUserAgent| in the pending entry.
 - (void)useDesktopUserAgentForNextPendingEntry;
 
 @end
 
 #endif  // IOS_WEB_NAVIGATION_CRW_SESSION_CONTROLLER_H_