[ObjC ARC] Converts components/signin/ios/browser:unit_tests to ARC.

components/signin/ios/browser/account_consistency_service_unittest.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.
 
 #include "components/signin/ios/browser/account_consistency_service.h"
 
 #import <WebKit/WebKit.h>
 
 #include <memory>
 
-#import "base/mac/scoped_nsobject.h"
 #include "components/signin/core/browser/account_reconcilor.h"
 #include "components/signin/core/browser/account_tracker_service.h"
 #include "components/signin/core/browser/fake_signin_manager.h"
 #include "components/signin/core/browser/gaia_cookie_manager_service.h"
 #include "components/signin/core/browser/test_signin_client.h"
 #include "components/signin/core/common/signin_pref_names.h"
 #include "components/sync_preferences/testing_pref_service_syncable.h"
 #include "google_apis/gaia/gaia_constants.h"
 #include "ios/web/public/test/fakes/test_browser_state.h"
 #import "ios/web/public/test/fakes/test_web_state.h"
 #include "ios/web/public/test/test_web_thread_bundle.h"
 #include "ios/web/public/web_state/web_state_policy_decider.h"
 #include "testing/gmock/include/gmock/gmock.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "testing/platform_test.h"
 #include "third_party/ocmock/OCMock/OCMock.h"
 #include "third_party/ocmock/gtest_support.h"
 
+#if !defined(__has_feature) || !__has_feature(objc_arc)
+#error "This file requires ARC support."
+#endif
+
 namespace {
 // URL of the Google domain where the CHROME_CONNECTED cookie is set/removed.
 NSURL* const kGoogleUrl = [NSURL URLWithString:@"https://google.com/"];
 // URL of the Youtube domain where the CHROME_CONNECTED cookie is set/removed.
 NSURL* const kYoutubeUrl = [NSURL URLWithString:@"https://youtube.com/"];
 // URL of a country Google domain where the CHROME_CONNECTED cookie is
 // set/removed.
 NSURL* const kCountryGoogleUrl = [NSURL URLWithString:@"https://google.de/"];
 
 // Google domain.
@@ skipping 16 matching lines @@
       : AccountConsistencyService(browser_state,
                                   account_reconcilor,
                                   cookie_settings,
                                   gaia_cookie_manager_service,
                                   signin_client,
                                   signin_manager) {}
 
  private:
   WKWebView* BuildWKWebView() override {
     if (!mock_web_view_) {
-      mock_web_view_.reset(
-          [[OCMockObject niceMockForClass:[WKWebView class]] retain]);
+      mock_web_view_ = [OCMockObject niceMockForClass:[WKWebView class]];
     }
     return mock_web_view_;
   }
-  base::scoped_nsobject<id> mock_web_view_;
+  id mock_web_view_;
 };
 
 // Mock AccountReconcilor to catch call to OnReceivedManageAccountsResponse.
 class MockAccountReconcilor : public AccountReconcilor {
  public:
   MockAccountReconcilor()
       : AccountReconcilor(nullptr, nullptr, nullptr, nullptr) {}
   MOCK_METHOD1(OnReceivedManageAccountsResponse, void(signin::GAIAServiceType));
 };
 
@@ skipping 66 matching lines @@
   }
 
   // Adds an expectation for |url| to be loaded in the web view of
   // |account_consistency_service_|.
   // |continue_navigation| controls whether navigation will continue or be
   // stopped on page load.
   void AddPageLoadedExpectation(NSURL* url, bool continue_navigation) {
     void (^continueBlock)(NSInvocation*) = ^(NSInvocation* invocation) {
       if (!continue_navigation)
         return;
-      WKWebView* web_view = nil;
+      __unsafe_unretained WKWebView* web_view = nil;
       [invocation getArgument:&web_view atIndex:0];
       [GetNavigationDelegate() webView:web_view didFinishNavigation:nil];
     };
     [static_cast<WKWebView*>([[GetMockWKWebView() expect] andDo:continueBlock])
         loadHTMLString:[OCMArg any]
                baseURL:url];
   }
 
   void ResetAccountConsistencyService() {
     if (account_consistency_service_) {
@@ skipping 60 matching lines @@
   // Check that main Google domains are added.
   AddPageLoadedExpectation(kGoogleUrl, true /* continue_navigation */);
   AddPageLoadedExpectation(kYoutubeUrl, true /* continue_navigation */);
   SignIn();
   // Check that other Google domains are added on navigation.
   AddPageLoadedExpectation(kCountryGoogleUrl, true /* continue_navigation */);
 
   id delegate =
       [OCMockObject mockForProtocol:@protocol(ManageAccountsDelegate)];
   NSDictionary* headers = [NSDictionary dictionary];
-  base::scoped_nsobject<NSHTTPURLResponse> response([[NSHTTPURLResponse alloc]
-       initWithURL:kCountryGoogleUrl
-        statusCode:200
-       HTTPVersion:@"HTTP/1.1"
-      headerFields:headers]);
+  NSHTTPURLResponse* response =
+      [[NSHTTPURLResponse alloc] initWithURL:kCountryGoogleUrl
+                                  statusCode:200
+                                 HTTPVersion:@"HTTP/1.1"
+                                headerFields:headers];
   account_consistency_service_->SetWebStateHandler(&web_state_, delegate);
   EXPECT_TRUE(web_state_.ShouldAllowResponse(response));
   web_state_.WebStateDestroyed();
 
   // Check that all domains are removed.
   AddPageLoadedExpectation(kGoogleUrl, true /* continue_navigation */);
   AddPageLoadedExpectation(kYoutubeUrl, true /* continue_navigation */);
   AddPageLoadedExpectation(kCountryGoogleUrl, true /* continue_navigation */);
   SignOut();
   EXPECT_OCMOCK_VERIFY(GetMockWKWebView());
@@ skipping 31 matching lines @@
 
 // Tests that the X-Chrome-Manage-Accounts header is ignored unless it comes
 // from Gaia signon realm.
 TEST_F(AccountConsistencyServiceTest, ChromeManageAccountsNotOnGaia) {
   id delegate =
       [OCMockObject mockForProtocol:@protocol(ManageAccountsDelegate)];
 
   NSDictionary* headers =
       [NSDictionary dictionaryWithObject:@"action=DEFAULT"
                                   forKey:@"X-Chrome-Manage-Accounts"];
-  base::scoped_nsobject<NSHTTPURLResponse> response([[NSHTTPURLResponse alloc]
+  NSHTTPURLResponse* response = [[NSHTTPURLResponse alloc]
        initWithURL:[NSURL URLWithString:@"https://google.com"]
         statusCode:200
        HTTPVersion:@"HTTP/1.1"
-      headerFields:headers]);
+      headerFields:headers];
   account_consistency_service_->SetWebStateHandler(&web_state_, delegate);
   EXPECT_TRUE(web_state_.ShouldAllowResponse(response));
   web_state_.WebStateDestroyed();
 
   EXPECT_OCMOCK_VERIFY(delegate);
 }
 
 // Tests that navigation to Gaia signon realm with no X-Chrome-Manage-Accounts
 // header in the response are simply untouched.
 TEST_F(AccountConsistencyServiceTest, ChromeManageAccountsNoHeader) {
   id delegate =
       [OCMockObject mockForProtocol:@protocol(ManageAccountsDelegate)];
 
   NSDictionary* headers = [NSDictionary dictionary];
-  base::scoped_nsobject<NSHTTPURLResponse> response([[NSHTTPURLResponse alloc]
+  NSHTTPURLResponse* response = [[NSHTTPURLResponse alloc]
        initWithURL:[NSURL URLWithString:@"https://accounts.google.com/"]
         statusCode:200
        HTTPVersion:@"HTTP/1.1"
-      headerFields:headers]);
+      headerFields:headers];
   account_consistency_service_->SetWebStateHandler(&web_state_, delegate);
   EXPECT_TRUE(web_state_.ShouldAllowResponse(response));
   web_state_.WebStateDestroyed();
 
   EXPECT_OCMOCK_VERIFY(delegate);
 }
 
 // Tests that the ManageAccountsDelegate is notified when a navigation on Gaia
 // signon realm returns with a X-Chrome-Manage-Accounts header with action
 // DEFAULT.
 TEST_F(AccountConsistencyServiceTest, ChromeManageAccountsDefault) {
   id delegate =
       [OCMockObject mockForProtocol:@protocol(ManageAccountsDelegate)];
   // Default action is |onManageAccounts|.
   [[delegate expect] onManageAccounts];
 
   NSDictionary* headers =
       [NSDictionary dictionaryWithObject:@"action=DEFAULT"
                                   forKey:@"X-Chrome-Manage-Accounts"];
-  base::scoped_nsobject<NSHTTPURLResponse> response([[NSHTTPURLResponse alloc]
+  NSHTTPURLResponse* response = [[NSHTTPURLResponse alloc]
        initWithURL:[NSURL URLWithString:@"https://accounts.google.com/"]
         statusCode:200
        HTTPVersion:@"HTTP/1.1"
-      headerFields:headers]);
+      headerFields:headers];
   account_consistency_service_->SetWebStateHandler(&web_state_, delegate);
   EXPECT_CALL(account_reconcilor_, OnReceivedManageAccountsResponse(
                                        signin::GAIA_SERVICE_TYPE_DEFAULT))
       .Times(1);
   EXPECT_FALSE(web_state_.ShouldAllowResponse(response));
   web_state_.WebStateDestroyed();
 
   EXPECT_OCMOCK_VERIFY(delegate);
 }
 
@@ skipping 87 matching lines @@
 // Tests that main domains are added to the internal map when cookies are set in
 // reaction to signin.
 TEST_F(AccountConsistencyServiceTest, SigninAddCookieOnMainDomains) {
   AddPageLoadedExpectation(kGoogleUrl, true /* continue_navigation */);
   AddPageLoadedExpectation(kYoutubeUrl, true /* continue_navigation */);
   SignIn();
 
   CheckDomainHasCookie(kGoogleDomain);
   CheckDomainHasCookie(kYoutubeDomain);
 }