[iOS] Refactoring web CRWSessionController user agent code.

ios/web/net/crw_ssl_status_updater_unittest.mm

 // Copyright 2016 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/net/crw_ssl_status_updater.h"
 
 #include "base/mac/scoped_block.h"
 #include "base/strings/sys_string_conversions.h"
 #import "ios/web/navigation/crw_session_controller+private_constructors.h"
 #import "ios/web/navigation/crw_session_controller.h"
@@ skipping 91 matching lines @@
   }
 
   // Returns autoreleased session controller with a single committed entry.
   CRWSessionController* SessionControllerWithEntry(std::string item_url_spec) {
     std::vector<std::unique_ptr<web::NavigationItem>> nav_items;
     base::scoped_nsobject<CRWSessionController> session_controller(
         [[CRWSessionController alloc]
             initWithNavigationItems:std::move(nav_items)
                        currentIndex:0
                        browserState:GetBrowserState()]);
-    [session_controller addPendingItem:GURL(item_url_spec)
-                              referrer:Referrer()
-                            transition:ui::PAGE_TRANSITION_LINK
-                     rendererInitiated:NO];
+    [session_controller
+        addPendingItem:GURL(item_url_spec)
+              referrer:Referrer()
+            transition:ui::PAGE_TRANSITION_LINK
+        initiationType:web::NavigationInitiationType::USER_INITIATED];
     [session_controller commitPendingItem];
 
     return session_controller.autorelease();
   }
 
   base::scoped_nsobject<CRWSSLStatusUpdaterTestDataSource> data_source_;
   base::scoped_nsprotocol<id> delegate_;
   std::unique_ptr<web::NavigationManagerImpl> nav_manager_;
   base::scoped_nsobject<CRWSSLStatusUpdater> ssl_status_updater_;
   base::ScopedCFTypeRef<SecTrustRef> trust_;
@@ skipping 231 matching lines @@
   [data_source_
       finishVerificationWithCertStatus:0
                          securityStyle:web::SECURITY_STYLE_AUTHENTICATED];
 
   // Make sure that security style and content status did change.
   EXPECT_EQ(web::SECURITY_STYLE_UNKNOWN, item->GetSSL().security_style);
   EXPECT_EQ(web::SSLStatus::NORMAL_CONTENT, item->GetSSL().content_status);
 }
 
 }  // namespace web