Add checkbox for reporting invalid TLS/SSL cert chains

chrome/common/chrome_switches.cc

Index: chrome/common/chrome_switches.cc
diff --git a/chrome/common/chrome_switches.cc b/chrome/common/chrome_switches.cc
index 82c9410cd4a3563db571824175ef32cda8117afd..083f08ab0bf424732c06dd6047b911f54a043baf 100644
--- a/chrome/common/chrome_switches.cc
+++ b/chrome/common/chrome_switches.cc
@@ -440,6 +440,9 @@ const char kEnableExtensionActivityLogTesting[] =
 // crbug.com/142458 .
 const char kEnableFastUnload[]         = "enable-fast-unload";
 
+// Enable opt-in for the collection of invalid TLS/SSL certificate chains.
+const char kEnableInvalidCertCollection[] = "enable-invalid-cert-collection";
+
 // Enables IPv6 support, even if probes suggest that it may not be fully
 // supported. Some probes may require internet connections, and this flag will
 // allow support independent of application testing. This flag overrides