Add checkbox for reporting invalid TLS/SSL cert chains

chrome/browser/about_flags.cc

Index: chrome/browser/about_flags.cc
diff --git a/chrome/browser/about_flags.cc b/chrome/browser/about_flags.cc
index 577ad8e307d6d934ba09beedb954fd4d04e39470..cd112cf6f09ce6dce7056f58171bd81d3808e1d4 100644
--- a/chrome/browser/about_flags.cc
+++ b/chrome/browser/about_flags.cc
@@ -2193,6 +2193,13 @@ const Experiment kExperiments[] = {
         switches::kSyncServiceURL,
         "https://chrome-sync.sandbox.google.com/chrome-sync/alpha")
   },
+  {
+    "enable-cert-collection",
+    IDS_ENABLE_INVALID_CERT_COLLECTION,
+    IDS_ENABLE_INVALID_CERT_COLLECTION_DESCRIPTION,
+    kOsAll,
+    SINGLE_VALUE_TYPE(switches::kEnableInvalidCertCollection)
+  },
 
   // NOTE: Adding new command-line switches requires adding corresponding
   // entries to enum "LoginCustomFlags" in histograms.xml. See note in