Moved |openedByDOM| to WebState's CreateParams and public interface.

ios/web/web_state/ui/crw_web_controller_unittest.mm

 // 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.
 
 #import "ios/web/web_state/ui/crw_web_controller.h"
 
 #import <WebKit/WebKit.h>
 
 #include <utility>
 
@@ skipping 712 matching lines @@
  protected:
   void SetUp() override {
     web::WebTestWithWebController::SetUp();
     mock_native_provider_.reset([[TestNativeContentProvider alloc] init]);
     [web_controller() setNativeProvider:mock_native_provider_];
   }
 
   void Load(const GURL& URL) {
     NavigationManagerImpl& navigation_manager =
         [web_controller() webStateImpl]->GetNavigationManagerImpl();
-    navigation_manager.InitializeSession(NO);
     navigation_manager.AddPendingItem(
         URL, web::Referrer(), ui::PAGE_TRANSITION_TYPED,
         web::NavigationInitiationType::USER_INITIATED);
     [web_controller() loadCurrentURL];
   }
 
   base::scoped_nsobject<TestNativeContentProvider> mock_native_provider_;
 };
 
 // Tests WebState and NavigationManager correctly return native content URL.
@@ skipping 211 matching lines @@
   web::TestWebStateObserver* observer_ptr = &observer;
   web::SimulateWKWebViewCrash(webView_);
   base::test::ios::WaitUntilCondition(^bool() {
     return observer_ptr->render_process_gone_info();
   });
   EXPECT_EQ(web_state(), observer.render_process_gone_info()->web_state);
   EXPECT_FALSE([web_controller() isViewAlive]);
 };
 
 }  // namespace