Stop using CertStore which is not compatible with PlzNavigate.

ios/web/net/crw_ssl_status_updater_unittest.mm

Index: ios/web/net/crw_ssl_status_updater_unittest.mm
diff --git a/ios/web/net/crw_ssl_status_updater_unittest.mm b/ios/web/net/crw_ssl_status_updater_unittest.mm
index b812bb6e3adfa512a6d822db5d56be3c4a0a9137..e316e25d830485283c4376eb0e56bc79699909bd 100644
--- a/ios/web/net/crw_ssl_status_updater_unittest.mm
+++ b/ios/web/net/crw_ssl_status_updater_unittest.mm
@@ -147,7 +147,7 @@ TEST_F(CRWSSLStatusUpdaterTest, HttpItem) {
                                    hasOnlySecureContent:NO];
 
   // No certificate for http.
-  EXPECT_FALSE(item->GetSSL().cert_id);
+  EXPECT_FALSE(!!item->GetSSL().certificate.get());
   // Make sure that security style and content status did change.
   EXPECT_EQ(web::SECURITY_STYLE_UNAUTHENTICATED, item->GetSSL().security_style);
   EXPECT_EQ(web::SSLStatus::DISPLAYED_INSECURE_CONTENT,
@@ -166,7 +166,7 @@ TEST_F(CRWSSLStatusUpdaterTest, NoChangesToHttpItem) {
                                                   trust:trust_
                                    hasOnlySecureContent:YES];
   // No certificate for http.
-  EXPECT_FALSE(item->GetSSL().cert_id);
+  EXPECT_FALSE(!!item->GetSSL().certificate.get());
   // Make sure that security style did not change.
   EXPECT_EQ(web::SECURITY_STYLE_UNAUTHENTICATED, item->GetSSL().security_style);
 }
@@ -188,7 +188,7 @@ TEST_F(CRWSSLStatusUpdaterTest, HttpsItemNoCert) {
                                  trust:base::ScopedCFTypeRef<SecTrustRef>()
                   hasOnlySecureContent:YES];
   // No certificate.
-  EXPECT_FALSE(item->GetSSL().cert_id);
+  EXPECT_FALSE(!!item->GetSSL().certificate.get());
   // Make sure that security style did change.
   EXPECT_EQ(web::SECURITY_STYLE_UNKNOWN, item->GetSSL().security_style);
   EXPECT_EQ(web::SSLStatus::NORMAL_CONTENT, item->GetSSL().content_status);
@@ -201,8 +201,7 @@ TEST_F(CRWSSLStatusUpdaterTest, HttpsItemNoCertReverification) {
   web::NavigationItem* item = nav_manager_->GetLastCommittedItem();
   // Set SSL status manually in the way so cert re-verification is not run.
   item->GetSSL().cert_status_host = base::SysNSStringToUTF8(kHostName);
-  item->GetSSL().cert_id = web::CertStore::GetInstance()->StoreCert(
-      web::CreateCertFromTrust(trust_).get(), kCertGroupID);
+  item->GetSSL().certificate = web::CreateCertFromTrust(trust_);
 
   // Make sure that item change callback was called.
   [[delegate_ expect] SSLStatusUpdater:ssl_status_updater_
@@ -355,7 +354,7 @@ TEST_F(CRWSSLStatusUpdaterTest, CertChanged) {
   EXPECT_FALSE(item->GetSSL().cert_status);
 
   // Change the cert.
-  item->GetSSL().cert_id = -1;
+  item->GetSSL().certificate = nullptr;
 
   // Reply with calculated cert verification status.
   [data_source_