Add function to support clearing SSL/certificate store.

net/cert/x509_util_android.cc

Index: net/cert/x509_util_android.cc
diff --git a/net/cert/x509_util_android.cc b/net/cert/x509_util_android.cc
index 128ea850ac0e89c1563f8dcc25ed17493f17f15a..e63e10444f04cb889b5cb29d08429b84c5efe2a7 100644
--- a/net/cert/x509_util_android.cc
+++ b/net/cert/x509_util_android.cc
@@ -16,6 +16,10 @@ void NotifyKeyChainChanged(JNIEnv* env, jclass clazz) {
   CertDatabase::GetInstance()->OnAndroidKeyChainChanged();
 }
 
+void NotifyClientCertificatesChanged(JNIEnv* env, jclass clazz) {
+  CertDatabase::GetInstance()->OnAndroidKeyStoreChanged();
+}
+
 void RecordCertVerifyCapabilitiesHistogram(JNIEnv* env,
                                            jclass clazz,
                                            jboolean found_system_trust_roots) {