Converted CRWSessionController to use NavigationItems.

ios/web/navigation/crw_session_entry.h

Index: ios/web/navigation/crw_session_entry.h
diff --git a/ios/web/navigation/crw_session_entry.h b/ios/web/navigation/crw_session_entry.h
index 1251d34f6596908d886a79dac06838fb39ea06cd..76ef27d7c5273621a0d99cbd8d0b66ca12e1321f 100644
--- a/ios/web/navigation/crw_session_entry.h
+++ b/ios/web/navigation/crw_session_entry.h
@@ -27,7 +27,7 @@ class NavigationItemImpl;
 // DEPRECATED, do not use this class and do not add any methods to it.
 // Use web::NavigationItem instead.
 // TODO(crbug.com/454984): Remove this class.
-@interface CRWSessionEntry : NSObject<NSCopying>
+@interface CRWSessionEntry : NSObject
 
 // Pointer to the NavigationItem associated with this CRWSessionEntry.
 // Eventually, this will replace CRWSessionEntry entirely.
@@ -37,8 +37,7 @@ class NavigationItemImpl;
 @property(nonatomic, readonly) web::NavigationItemImpl* navigationItemImpl;
 
 // Initialize the session entry with the given NavigationItem.
-- (instancetype)initWithNavigationItem:
-    (std::unique_ptr<web::NavigationItem>)item;
+- (instancetype)initWithNavigationItem:(web::NavigationItemImpl*)item;
 
 @end