Add SSlHostState::Clear()

content/browser/ssl/ssl_host_state.cc

Index: content/browser/ssl/ssl_host_state.cc
diff --git a/content/browser/ssl/ssl_host_state.cc b/content/browser/ssl/ssl_host_state.cc
index e0ceea46a1608ca8f9d8b7193fc51c3ff0020a6b..597ecaf1ed1fde73916b0e15bf65d72cab919f0c 100644
--- a/content/browser/ssl/ssl_host_state.cc
+++ b/content/browser/ssl/ssl_host_state.cc
@@ -50,6 +50,12 @@ void SSLHostState::AllowCertForHost(net::X509Certificate* cert,
   cert_policy_for_host_[host].Allow(cert);
 }
 
+void SSLHostState::Clear() {
+  DCHECK(CalledOnValidThread());
+
+  cert_policy_for_host_.clear();
+}
+
 net::CertPolicy::Judgment SSLHostState::QueryPolicy(
     net::X509Certificate* cert, const std::string& host) {
   DCHECK(CalledOnValidThread());