Refactor serialisation of openerId & openerNavigationIndex.

ios/web/navigation/navigation_manager_impl_unittest.mm

 // Copyright 2014 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/web/navigation/navigation_manager_impl.h"
 
 #include "base/logging.h"
 #import "base/mac/scoped_nsobject.h"
 #import "ios/web/navigation/crw_session_controller+private_constructors.h"
 #import "ios/web/navigation/navigation_manager_delegate.h"
@@ skipping 16 matching lines @@
 }  // namespace
 
 // Test fixture for NavigationManagerImpl testing.
 class NavigationManagerTest : public PlatformTest {
  protected:
   NavigationManagerTest() : manager_(new NavigationManagerImpl()) {
     manager_->SetDelegate(&delegate_);
     manager_->SetBrowserState(&browser_state_);
     controller_.reset([[CRWSessionController alloc]
            initWithWindowName:nil
-                     openerId:nil
                   openedByDOM:NO
-        openerNavigationIndex:0
                  browserState:&browser_state_]);
     manager_->SetSessionController(controller_.get());
   }
   CRWSessionController* session_controller() { return controller_.get(); }
   NavigationManagerImpl* navigation_manager() { return manager_.get(); }
 
  private:
   TestBrowserState browser_state_;
   TestNavigationManagerDelegate delegate_;
   std::unique_ptr<NavigationManagerImpl> manager_;
@@ skipping 462 matching lines @@
   navigation_manager()->OverrideDesktopUserAgentForNextPendingItem();
   navigation_manager()->AddPendingItem(
       GURL("http://www.url.com"), Referrer(), ui::PAGE_TRANSITION_TYPED,
       web::NavigationInitiationType::USER_INITIATED);
   [session_controller() commitPendingItem];
   NavigationItem* visible_item = navigation_manager()->GetVisibleItem();
   EXPECT_TRUE(visible_item->IsOverridingUserAgent());
 }
 
 }  // namespace web