Replaced webPageOrderedClose with WebStateDelegate API.

ios/web/web_state/web_state_delegate_bridge_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/public/web_state/web_state_delegate_bridge.h"
 
 #import <Foundation/Foundation.h>
 
 #include <memory>
 
@@ skipping 51 matching lines @@
   ASSERT_FALSE([delegate_ webState]);
   ASSERT_FALSE([delegate_ webStateCreationRequested]);
 
   EXPECT_FALSE(
       bridge_->CreateNewWebState(&test_web_state_, GURL(), GURL(), true));
 
   EXPECT_EQ(&test_web_state_, [delegate_ webState]);
   ASSERT_TRUE([delegate_ webStateCreationRequested]);
 }
 
+// Tests |closeWebState:| forwarding.
+TEST_F(WebStateDelegateBridgeTest, CloseWebState) {
+  ASSERT_FALSE([delegate_ webState]);
+  ASSERT_FALSE([delegate_ webStateClosingRequested]);
+
+  bridge_->CloseWebState(&test_web_state_);
+
+  EXPECT_EQ(&test_web_state_, [delegate_ webState]);
+  ASSERT_TRUE([delegate_ webStateClosingRequested]);
+}
+
 // Tests |webState:openURLWithParams:| forwarding.
 TEST_F(WebStateDelegateBridgeTest, OpenURLFromWebState) {
   ASSERT_FALSE([delegate_ webState]);
   ASSERT_FALSE([delegate_ openURLParams]);
 
   web::WebState::OpenURLParams params(
       GURL("https://chromium.test/"),
       web::Referrer(GURL("https://chromium2.test/"), ReferrerPolicyNever),
       WindowOpenDisposition::NEW_WINDOW, ui::PAGE_TRANSITION_FORM_SUBMIT, true);
   EXPECT_EQ(&test_web_state_,
@@ skipping 72 matching lines @@
   base::scoped_nsobject<NSURLCredential> credential(
       [[NSURLCredential alloc] init]);
   WebStateDelegate::AuthCallback callback;
   bridge_->OnAuthRequired(&test_web_state_, protection_space.get(),
                           credential.get(), callback);
   EXPECT_TRUE([delegate_ authenticationRequested]);
   EXPECT_EQ(&test_web_state_, [delegate_ webState]);
 }
 
 }  // namespace web