Replace --add-to-shelf flag with kAppBanners feature.

chrome/browser/banners/app_banner_manager_browsertest.cc

Index: chrome/browser/banners/app_banner_manager_browsertest.cc
diff --git a/chrome/browser/banners/app_banner_manager_browsertest.cc b/chrome/browser/banners/app_banner_manager_browsertest.cc
index 61565d65a29f0d43ffaf58f77df0cf531ccf7ad5..4f014568e351a0d87b4934340dff02a7921bca5e 100644
--- a/chrome/browser/banners/app_banner_manager_browsertest.cc
+++ b/chrome/browser/banners/app_banner_manager_browsertest.cc
@@ -113,13 +113,11 @@ class AppBannerManagerBrowserTest : public InProcessBrowserTest {
     AppBannerSettingsHelper::SetTotalEngagementToTrigger(10);
     SiteEngagementScore::SetParamValuesForTesting();
     ASSERT_TRUE(embedded_test_server()->Start());
-    InProcessBrowserTest::SetUpOnMainThread();
-  }
 
-  void SetUpCommandLine(base::CommandLine* command_line) override {
     // Make sure app banners are disabled in the browser, otherwise they will
     // interfere with the test.
-    command_line->AppendSwitch(switches::kDisableAddToShelf);
+    feature_list_.InitAndDisableFeature(features::kAppBanners);
+    InProcessBrowserTest::SetUpOnMainThread();
   }
 
  protected:
@@ -222,6 +220,8 @@ class AppBannerManagerBrowserTest : public InProcessBrowserTest {
       EXPECT_FALSE(manager->need_to_log_status());
     }
   }
+
+  base::test::ScopedFeatureList feature_list_;
 };
 
 IN_PROC_BROWSER_TEST_F(AppBannerManagerBrowserTest, WebAppBannerCreated) {
@@ -393,8 +393,8 @@ IN_PROC_BROWSER_TEST_F(AppBannerManagerBrowserTest, DoesNotShowInIncognito) {
 IN_PROC_BROWSER_TEST_F(AppBannerManagerBrowserTest,
                        CheckOnLoadWithSufficientEngagement) {
   base::test::ScopedFeatureList feature_list;
-  feature_list.InitAndEnableFeature(
-      features::kCheckInstallabilityForBannerOnLoad);
+  feature_list.InitWithFeatures({features::kCheckInstallabilityForBannerOnLoad},
+                                {features::kAppBanners});
   std::unique_ptr<AppBannerManagerTest> manager(
       CreateAppBannerManager(browser()));
   std::vector<double> engagement_scores{10};
@@ -405,8 +405,8 @@ IN_PROC_BROWSER_TEST_F(AppBannerManagerBrowserTest,
 IN_PROC_BROWSER_TEST_F(AppBannerManagerBrowserTest,
                        CheckOnLoadWithSufficientEngagementCancelDirect) {
   base::test::ScopedFeatureList feature_list;
-  feature_list.InitAndEnableFeature(
-      features::kCheckInstallabilityForBannerOnLoad);
+  feature_list.InitWithFeatures({features::kCheckInstallabilityForBannerOnLoad},
+                                {features::kAppBanners});
   std::unique_ptr<AppBannerManagerTest> manager(
       CreateAppBannerManager(browser()));
   std::vector<double> engagement_scores{10};
@@ -418,8 +418,8 @@ IN_PROC_BROWSER_TEST_F(
     AppBannerManagerBrowserTest,
     CheckOnLoadWithSufficientEngagementCancelBannerAfterPromptInHandler) {
   base::test::ScopedFeatureList feature_list;
-  feature_list.InitAndEnableFeature(
-      features::kCheckInstallabilityForBannerOnLoad);
+  feature_list.InitWithFeatures({features::kCheckInstallabilityForBannerOnLoad},
+                                {features::kAppBanners});
   std::unique_ptr<AppBannerManagerTest> manager(
       CreateAppBannerManager(browser()));
   std::vector<double> engagement_scores{10};
@@ -439,8 +439,8 @@ IN_PROC_BROWSER_TEST_F(AppBannerManagerBrowserTest,
   SiteEngagementService* service =
       SiteEngagementService::Get(browser()->profile());
   base::test::ScopedFeatureList feature_list;
-  feature_list.InitAndEnableFeature(
-      features::kCheckInstallabilityForBannerOnLoad);
+  feature_list.InitWithFeatures({features::kCheckInstallabilityForBannerOnLoad},
+                                {features::kAppBanners});
   std::unique_ptr<AppBannerManagerTest> manager(
       CreateAppBannerManager(browser()));
 
@@ -488,8 +488,8 @@ IN_PROC_BROWSER_TEST_F(AppBannerManagerBrowserTest,
 
 IN_PROC_BROWSER_TEST_F(AppBannerManagerBrowserTest, CheckOnLoadThenNavigate) {
   base::test::ScopedFeatureList feature_list;
-  feature_list.InitAndEnableFeature(
-      features::kCheckInstallabilityForBannerOnLoad);
+  feature_list.InitWithFeatures({features::kCheckInstallabilityForBannerOnLoad},
+                                {features::kAppBanners});
   std::unique_ptr<AppBannerManagerTest> manager(
       CreateAppBannerManager(browser()));