Add Finch testing configs for ReportCertificateErrors study

chrome/browser/ssl/captive_portal_blocking_page_browsertest.cc

Index: chrome/browser/ssl/captive_portal_blocking_page_browsertest.cc
diff --git a/chrome/browser/ssl/captive_portal_blocking_page_browsertest.cc b/chrome/browser/ssl/captive_portal_blocking_page_browsertest.cc
index 0d649ee633bc87fb176f524546a33baa85c1b2c0..6330b0e7d231f5491bc06e39c4263677351962ff 100644
--- a/chrome/browser/ssl/captive_portal_blocking_page_browsertest.cc
+++ b/chrome/browser/ssl/captive_portal_blocking_page_browsertest.cc
@@ -279,14 +279,18 @@ IN_PROC_BROWSER_TEST_F(CaptivePortalBlockingPageTest,
 }
 
 IN_PROC_BROWSER_TEST_F(CaptivePortalBlockingPageTest, CertReportingOptIn) {
-  CertificateReportingTestUtils::SetCertReportingFinchConfig(
-      CertReportHelper::kFinchGroupShowPossiblySend, "1.0");
-  TestCertReporting(CertificateReportingTestUtils::EXTENDED_REPORTING_OPT_IN);
+  // This test should only run if the Finch config is such that reports
+  // will be sent when opted in. This tests that a report *is* sent when
+  // the user opts in under such a Finch config, and the below test
+  // tests that a report *is not* sent when the user doesn't opt in
+  // (under any Finch config).
+  if (CertificateReportingTestUtils::GetReportExpectedFromFinch() ==
+      CertificateReportingTestUtils::CERT_REPORT_EXPECTED) {
+    TestCertReporting(CertificateReportingTestUtils::EXTENDED_REPORTING_OPT_IN);
+  }
 }
 
 IN_PROC_BROWSER_TEST_F(CaptivePortalBlockingPageTest, CertReportingOptOut) {
-  CertificateReportingTestUtils::SetCertReportingFinchConfig(
-      CertReportHelper::kFinchGroupShowPossiblySend, "1.0");
   TestCertReporting(
       CertificateReportingTestUtils::EXTENDED_REPORTING_DO_NOT_OPT_IN);
 }