[ObjC ARC] Converts ios/chrome/app:unit_tests to ARC.

ios/chrome/app/chrome_app_startup_parameters_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.
 
 #import "ios/chrome/app/chrome_app_startup_parameters.h"
 
 #import <Foundation/Foundation.h>
 
-#include "base/mac/scoped_nsobject.h"
 #include "base/strings/stringprintf.h"
 #include "ios/chrome/browser/app_startup_parameters.h"
 #include "ios/chrome/browser/chrome_url_constants.h"
 #import "ios/chrome/browser/xcallback_parameters.h"
 #include "ios/chrome/common/app_group/app_group_constants.h"
 #include "testing/gtest_mac.h"
 #include "testing/platform_test.h"
 #include "url/gurl.h"
 
+#if !defined(__has_feature) || !__has_feature(objc_arc)
+#error "This file requires ARC support."
+#endif
+
 namespace {
 void CheckLaunchSourceForURL(first_run::ExternalLaunch expectedSource,
                              NSString* urlString) {
   NSURL* url = [NSURL URLWithString:urlString];
-  base::scoped_nsobject<ChromeAppStartupParameters> params(
-      [ChromeAppStartupParameters
-          newChromeAppStartupParametersWithURL:url
-                         fromSourceApplication:@"com.apple.mobilesafari"]);
+  ChromeAppStartupParameters* params = [ChromeAppStartupParameters
+      newChromeAppStartupParametersWithURL:url
+                     fromSourceApplication:@"com.apple.mobilesafari"];
   EXPECT_EQ(expectedSource, [params launchSource]);
 }
 
 typedef PlatformTest AppStartupParametersTest;
 TEST_F(PlatformTest, ParseURLWithEmptyURL) {
   NSURL* url = [NSURL URLWithString:@""];
-  base::scoped_nsobject<ChromeAppStartupParameters> params(
+  ChromeAppStartupParameters* params =
       [ChromeAppStartupParameters newChromeAppStartupParametersWithURL:url
-                                                 fromSourceApplication:nil]);
+                                                 fromSourceApplication:nil];
 
   EXPECT_FALSE(params);
 }
 
 TEST_F(AppStartupParametersTest, ParseURLWithOneProtocol) {
   NSURL* url = [NSURL URLWithString:@"protocol://www.google.com"];
-  base::scoped_nsobject<ChromeAppStartupParameters> params(
+  ChromeAppStartupParameters* params =
       [ChromeAppStartupParameters newChromeAppStartupParametersWithURL:url
-                                                 fromSourceApplication:nil]);
+                                                 fromSourceApplication:nil];
   // Here "protocol" opens the app and no protocol is given for the parsed URL,
   // which defaults to be "http".
   EXPECT_EQ("http://www.google.com/", [params externalURL].spec());
 }
 
 TEST_F(AppStartupParametersTest, ParseURLWithEmptyParsedURL) {
   // Test chromium://
   NSURL* url = [NSURL URLWithString:@"chromium://"];
-  base::scoped_nsobject<ChromeAppStartupParameters> params(
+  ChromeAppStartupParameters* params =
       [ChromeAppStartupParameters newChromeAppStartupParametersWithURL:url
-                                                 fromSourceApplication:nil]);
+                                                 fromSourceApplication:nil];
 
   EXPECT_FALSE(params);
 }
 
 TEST_F(AppStartupParametersTest, ParseURLWithParsedURLDefaultToHttp) {
   NSURL* url = [NSURL URLWithString:@"chromium://www.google.com"];
-  base::scoped_nsobject<ChromeAppStartupParameters> params(
+  ChromeAppStartupParameters* params =
       [ChromeAppStartupParameters newChromeAppStartupParametersWithURL:url
-                                                 fromSourceApplication:nil]);
+                                                 fromSourceApplication:nil];
 
   EXPECT_EQ("http://www.google.com/", [params externalURL].spec());
 }
 
 TEST_F(AppStartupParametersTest, ParseURLWithInvalidParsedURL) {
   NSURL* url = [NSURL URLWithString:@"http:google.com:foo"];
-  base::scoped_nsobject<ChromeAppStartupParameters> params(
+  ChromeAppStartupParameters* params =
       [ChromeAppStartupParameters newChromeAppStartupParametersWithURL:url
-                                                 fromSourceApplication:nil]);
+                                                 fromSourceApplication:nil];
 
   EXPECT_FALSE(params);
 }
 
 TEST_F(AppStartupParametersTest, ParseURLWithHttpsParsedURL) {
   NSURL* url = [NSURL URLWithString:@"chromiums://www.google.com"];
-  base::scoped_nsobject<ChromeAppStartupParameters> params(
+  ChromeAppStartupParameters* params =
       [ChromeAppStartupParameters newChromeAppStartupParametersWithURL:url
-                                                 fromSourceApplication:nil]);
+                                                 fromSourceApplication:nil];
 
   EXPECT_EQ("https://www.google.com/", [params externalURL].spec());
 }
 
 TEST_F(AppStartupParametersTest, ParseURLWithXCallbackURL) {
   NSURL* url =
       [NSURL URLWithString:@"chromium-x-callback://x-callback-url/open?"
                             "url=https://www.google.com"];
-  base::scoped_nsobject<ChromeAppStartupParameters> params(
+  ChromeAppStartupParameters* params =
       [ChromeAppStartupParameters newChromeAppStartupParametersWithURL:url
-                                                 fromSourceApplication:nil]);
+                                                 fromSourceApplication:nil];
   EXPECT_EQ("https://www.google.com/", [params externalURL].spec());
 }
 
 TEST_F(AppStartupParametersTest, ParseURLWithXCallbackURLAndExtraParams) {
   NSURL* url =
       [NSURL URLWithString:@"chromium-x-callback://x-callback-url/open?"
                             "url=https://www.google.com&"
                             "x-success=http://success"];
-  base::scoped_nsobject<ChromeAppStartupParameters> params(
+  ChromeAppStartupParameters* params =
       [ChromeAppStartupParameters newChromeAppStartupParametersWithURL:url
-                                                 fromSourceApplication:nil]);
+                                                 fromSourceApplication:nil];
   EXPECT_EQ("https://www.google.com/", [params externalURL].spec());
 }
 
 TEST_F(AppStartupParametersTest, ParseURLWithMalformedXCallbackURL) {
   NSURL* url = [NSURL
       URLWithString:@"chromium-x-callback://x-callback-url/open?url=foobar&"
                      "x-source=myapp&x-success=http://success"];
-  base::scoped_nsobject<ChromeAppStartupParameters> params(
-      [ChromeAppStartupParameters
-          newChromeAppStartupParametersWithURL:url
-                         fromSourceApplication:@"com.myapp"]);
+  ChromeAppStartupParameters* params = [ChromeAppStartupParameters
+      newChromeAppStartupParametersWithURL:url
+                     fromSourceApplication:@"com.myapp"];
   EXPECT_FALSE(params);
 }
 
 TEST_F(AppStartupParametersTest, ParseURLWithJavascriptURLInXCallbackURL) {
   NSURL* url = [NSURL
       URLWithString:
           @"chromium-x-callback://x-callback-url/open?url="
            "javascript:window.open()&x-source=myapp&x-success=http://success"];
-  base::scoped_nsobject<ChromeAppStartupParameters> params(
-      [ChromeAppStartupParameters
-          newChromeAppStartupParametersWithURL:url
-                         fromSourceApplication:@"com.myapp"]);
+  ChromeAppStartupParameters* params = [ChromeAppStartupParameters
+      newChromeAppStartupParametersWithURL:url
+                     fromSourceApplication:@"com.myapp"];
   EXPECT_FALSE(params);
 }
 
 TEST_F(AppStartupParametersTest, ParseURLWithChromeURLInXCallbackURL) {
   NSURL* url =
       [NSURL URLWithString:@"chromium-x-callback://x-callback-url/open?url="
                             "chrome:passwords"];
-  base::scoped_nsobject<ChromeAppStartupParameters> params(
-      [ChromeAppStartupParameters
-          newChromeAppStartupParametersWithURL:url
-                         fromSourceApplication:@"com.myapp"]);
+  ChromeAppStartupParameters* params = [ChromeAppStartupParameters
+      newChromeAppStartupParametersWithURL:url
+                     fromSourceApplication:@"com.myapp"];
   EXPECT_FALSE(params);
 }
 
 TEST_F(AppStartupParametersTest, ParseURLWithFileParsedURL) {
   NSURL* url = [NSURL URLWithString:@"file://localhost/path/to/file.pdf"];
-  base::scoped_nsobject<ChromeAppStartupParameters> params(
+  ChromeAppStartupParameters* params =
       [ChromeAppStartupParameters newChromeAppStartupParametersWithURL:url
-                                                 fromSourceApplication:nil]);
+                                                 fromSourceApplication:nil];
 
   std::string expectedUrlString = base::StringPrintf(
       "%s://%s/file.pdf", kChromeUIScheme, kChromeUIExternalFileHost);
 
   EXPECT_EQ(expectedUrlString, [params externalURL].spec());
 }
 
 TEST_F(AppStartupParametersTest, ParseURLWithAppGroupVoiceSearch) {
-  base::scoped_nsobject<ChromeAppStartupParameters> params(
-      [ChromeAppStartupParameters
-          newAppStartupParametersForCommand:@"voicesearch"
-                              withParameter:nil
-                                    withURL:nil
-                      fromSourceApplication:nil
-                fromSecureSourceApplication:nil]);
+  ChromeAppStartupParameters* params = [ChromeAppStartupParameters
+      newAppStartupParametersForCommand:@"voicesearch"
+                          withParameter:nil
+                                withURL:nil
+                  fromSourceApplication:nil
+            fromSecureSourceApplication:nil];
 
   std::string expectedUrlString =
       base::StringPrintf("%s://%s/", kChromeUIScheme, kChromeUINewTabHost);
 
   EXPECT_EQ(expectedUrlString, [params externalURL].spec());
   EXPECT_TRUE([params launchVoiceSearch]);
 }
 
 TEST_F(AppStartupParametersTest, ParseURLWithAppGroupNewTab) {
-  base::scoped_nsobject<ChromeAppStartupParameters> params(
+  ChromeAppStartupParameters* params =
       [ChromeAppStartupParameters newAppStartupParametersForCommand:@"newtab"
                                                       withParameter:nil
                                                             withURL:nil
                                               fromSourceApplication:nil
-                                        fromSecureSourceApplication:nil]);
+                                        fromSecureSourceApplication:nil];
   std::string expectedUrlString =
       base::StringPrintf("%s://%s/", kChromeUIScheme, kChromeUINewTabHost);
 
   EXPECT_EQ(expectedUrlString, [params externalURL].spec());
   EXPECT_FALSE([params launchVoiceSearch]);
 }
 
 TEST_F(AppStartupParametersTest, ParseURLWithAppGroupOpenURL) {
-  base::scoped_nsobject<ChromeAppStartupParameters> params(
-      [ChromeAppStartupParameters
-          newAppStartupParametersForCommand:@"openurl"
-                              withParameter:@"http://foo/bar"
-                                    withURL:nil
-                      fromSourceApplication:nil
-                fromSecureSourceApplication:nil]);
+  ChromeAppStartupParameters* params = [ChromeAppStartupParameters
+      newAppStartupParametersForCommand:@"openurl"
+                          withParameter:@"http://foo/bar"
+                                withURL:nil
+                  fromSourceApplication:nil
+            fromSecureSourceApplication:nil];
 
   EXPECT_EQ("http://foo/bar", [params externalURL].spec());
 }
 
 TEST_F(AppStartupParametersTest, ParseURLWithAppGroupGarbage) {
-  base::scoped_nsobject<ChromeAppStartupParameters> params(
+  ChromeAppStartupParameters* params =
       [ChromeAppStartupParameters newAppStartupParametersForCommand:@"garbage"
                                                       withParameter:nil
                                                             withURL:nil
                                               fromSourceApplication:nil
-                                        fromSecureSourceApplication:nil]);
+                                        fromSecureSourceApplication:nil];
   EXPECT_FALSE(params);
 }
 
 TEST_F(AppStartupParametersTest, FirstRunExternalLaunchSource) {
   // Key at the beginning of query string.
   CheckLaunchSourceForURL(
       first_run::LAUNCH_BY_SMARTAPPBANNER,
       @"http://www.google.com/search?safarisab=1&query=pony");
   // Key at the end of query string.
   CheckLaunchSourceForURL(
@@ skipping 22 matching lines @@
   // Key is a substring of some other string.
   CheckLaunchSourceForURL(
       first_run::LAUNCH_BY_MOBILESAFARI,
       @"http://www.google.com/search?query=pony&safarisabcdefg=1");
   CheckLaunchSourceForURL(
       first_run::LAUNCH_BY_MOBILESAFARI,
       @"http://www.google.com/search?query=pony&notsafarisab=1&abc=def");
 }
 
 }  // namespace