Certificate Transparency: Adding finch and NetLog logging for EV certs

chrome/browser/io_thread.cc

Index: chrome/browser/io_thread.cc
diff --git a/chrome/browser/io_thread.cc b/chrome/browser/io_thread.cc
index 73f9f30c76fd0478ab167bc3d5d78f1ac7772f3b..b8ed1af5d7ef466e2bc20032de44151ffcdc69d9 100644
--- a/chrome/browser/io_thread.cc
+++ b/chrome/browser/io_thread.cc
@@ -323,6 +323,17 @@ bool IsStaleWhileRevalidateEnabled(const base::CommandLine& command_line) {
   return group_name == "Enabled";
 }
 
+bool IsCertificateTransparencyRequiredForEV(
+    const base::CommandLine& command_line) {
+  const std::string group_name =
+      base::FieldTrialList::FindFullName("CTRequiredForEVTrial");
+
+  if (command_line.HasSwitch(switches::kRequireCTForEV))
+    return true;
+
+  return group_name == "RequirementEnforced";
+}
+
 }  // namespace
 
 class IOThread::LoggingNetworkChangeObserver
@@ -643,12 +654,8 @@ void IOThread::InitAsync() {
   }
 
   net::CertPolicyEnforcer* policy_enforcer = NULL;
-  // TODO(eranm): Control with Finch, crbug.com/437766
-  if (command_line.HasSwitch(switches::kRequireCTForEV)) {
-    policy_enforcer = new net::CertPolicyEnforcer(kNumKnownCTLogs, true);
-  } else {
-    policy_enforcer = new net::CertPolicyEnforcer(kNumKnownCTLogs, false);
-  }
+  policy_enforcer = new net::CertPolicyEnforcer(
+      kNumKnownCTLogs, IsCertificateTransparencyRequiredForEV(command_line));
   globals_->cert_policy_enforcer.reset(policy_enforcer);
 
   globals_->ssl_config_service = GetSSLConfigService();