Integration tests for WebStateDelegate::OnAuthRequired callback.

ios/web/test/web_int_test.mm

 // Copyright 2015 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/test/web_int_test.h"
 
 #import "base/ios/block_types.h"
 #include "base/memory/ptr_util.h"
 #import "base/test/ios/wait_util.h"
 #import "ios/web/public/test/http_server.h"
@@ skipping 43 matching lines @@
 
   // Start the http server.
   web::test::HttpServer& server = web::test::HttpServer::GetSharedInstance();
   ASSERT_FALSE(server.IsRunning());
   server.StartOrDie();
 
   // Remove any previously existing WKWebView data.
   RemoveWKWebViewCreatedData([WKWebsiteDataStore defaultDataStore],
                              [WKWebsiteDataStore allWebsiteDataTypes]);
 
-  // Create the WebState and its WebStateObserver.
+  // Create the WebState.
   web::WebState::CreateParams web_state_create_params(GetBrowserState());
   web_state_ = web::WebState::Create(web_state_create_params);
-  observer_ = base::WrapUnique(new IntTestWebStateObserver(web_state()));
 
   // Resize the webview so that pages can be properly rendered.
   web_state()->GetView().frame =
       [UIApplication sharedApplication].keyWindow.bounds;
 
   // Enable web usage for the WebState.
   web_state()->SetWebUsageEnabled(true);
+
+  web_state()->SetDelegate(&web_state_delegate_);
 }
 
 void WebIntTest::TearDown() {
   RemoveWKWebViewCreatedData([WKWebsiteDataStore defaultDataStore],
                              [WKWebsiteDataStore allWebsiteDataTypes]);
 
   web::test::HttpServer& server = web::test::HttpServer::GetSharedInstance();
   server.Stop();
   EXPECT_FALSE(server.IsRunning());
 
   WebTest::TearDown();
 }
 
 id WebIntTest::ExecuteJavaScript(NSString* script) {
   return web::ExecuteJavaScript(web_state()->GetJSInjectionReceiver(), script);
 }
 
 void WebIntTest::ExecuteBlockAndWaitForLoad(const GURL& url,
                                             ProceduralBlock block) {
   DCHECK(block);
+  observer_ = base::MakeUnique<IntTestWebStateObserver>(web_state());
   observer_->ExpectPageLoad(url);
   block();
   base::test::ios::WaitUntilCondition(^bool {
     return observer_->IsExpectedPageLoaded();
   });
 }
 
 void WebIntTest::LoadUrl(const GURL& url) {
   ExecuteBlockAndWaitForLoad(url, ^{
     web::NavigationManager::WebLoadParams params(url);
@@ skipping 38 matching lines @@
 NSInteger WebIntTest::GetIndexOfNavigationItem(
     const web::NavigationItem* item) {
   for (NSInteger i = 0; i < navigation_manager()->GetItemCount(); ++i) {
     if (navigation_manager()->GetItemAtIndex(i) == item)
       return i;
   }
   return NSNotFound;
 }
 
 }  // namespace web