Replaced webPageOrderedClose with WebStateDelegate API.

ios/web/web_state/web_state_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/web_state/web_state_impl.h"
 
 #include <stddef.h>
 
 #include <memory>
 
@@ skipping 417 matching lines @@
   EXPECT_FALSE(delegate.last_create_new_web_state_request());
   web_state_->CreateNewWebState(child_url, opener_url, true);
   TestCreateNewWebStateRequest* create_new_web_state_request =
       delegate.last_create_new_web_state_request();
   ASSERT_TRUE(create_new_web_state_request);
   EXPECT_EQ(web_state_.get(), create_new_web_state_request->web_state);
   EXPECT_EQ(child_url, create_new_web_state_request->url);
   EXPECT_EQ(opener_url, create_new_web_state_request->opener_url);
   EXPECT_TRUE(create_new_web_state_request->initiated_by_user);
 
+  // Test that CloseWebState() is called.
+  EXPECT_FALSE(delegate.last_close_web_state_request());
+  web_state_->CloseWebState();
+  ASSERT_TRUE(delegate.last_close_web_state_request());
+  EXPECT_EQ(web_state_.get(),
+            delegate.last_close_web_state_request()->web_state);
+
   // Test that OpenURLFromWebState() is called.
   WebState::OpenURLParams params(GURL("https://chromium.test/"), Referrer(),
                                  WindowOpenDisposition::CURRENT_TAB,
                                  ui::PAGE_TRANSITION_LINK, true);
   EXPECT_FALSE(delegate.last_open_url_request());
   web_state_->OpenURL(params);
   TestOpenURLRequest* open_url_request = delegate.last_open_url_request();
   ASSERT_TRUE(open_url_request);
   EXPECT_EQ(web_state_.get(), open_url_request->web_state);
   WebState::OpenURLParams actual_params = open_url_request->params;
@@ skipping 206 matching lines @@
   // Check that a false return value is forwarded correctly.
   EXPECT_FALSE(
       web_state_->OnScriptCommandReceived(kCommand2, value_2, kUrl2, false));
   EXPECT_FALSE(is_called_1);
   EXPECT_TRUE(is_called_2);
 
   web_state_->RemoveScriptCommandCallback(kPrefix2);
 }
 
 }  // namespace web