Makes V4UpdateProtocolManager auto-schedule update fetching

components/safe_browsing_db/v4_protocol_manager_util.cc

Index: components/safe_browsing_db/v4_protocol_manager_util.cc
diff --git a/components/safe_browsing_db/v4_protocol_manager_util.cc b/components/safe_browsing_db/v4_protocol_manager_util.cc
index 2dddc161e563115576fe844dd36e1e4dd36dfdde..fbbad5bcc29bb40c4fdfb9655049790c599c954f 100644
--- a/components/safe_browsing_db/v4_protocol_manager_util.cc
+++ b/components/safe_browsing_db/v4_protocol_manager_util.cc
@@ -37,6 +37,10 @@ size_t UpdateListIdentifier::hash() const {
   return base::HashInts(interim, third);
 }
 
+V4ProtocolConfig::V4ProtocolConfig() : disable_auto_update(false) {}
+
+V4ProtocolConfig::~V4ProtocolConfig() {}
+
 // static
 // Backoff interval is MIN(((2^(n-1))*15 minutes) * (RAND + 1), 24 hours) where
 // n is the number of consecutive errors.
@@ -72,9 +76,9 @@ void V4ProtocolManagerUtil::RecordHttpResponseOrErrorCode(
 
 // static
 // The API hash call uses the pver4 Safe Browsing server.
-GURL V4ProtocolManagerUtil::GetRequestUrl(
-    const std::string& request_base64, const std::string& method_name,
-    const V4ProtocolConfig& config) {
+GURL V4ProtocolManagerUtil::GetRequestUrl(const std::string& request_base64,
+                                          const std::string& method_name,
+                                          const V4ProtocolConfig& config) {
   std::string url =
       ComposeUrl(kSbV4UrlPrefix, method_name, request_base64,
                  config.client_name, config.version, config.key_param);
@@ -82,13 +86,12 @@ GURL V4ProtocolManagerUtil::GetRequestUrl(
 }
 
 // static
-std::string V4ProtocolManagerUtil::ComposeUrl(
-    const std::string& prefix,
-    const std::string& method,
-    const std::string& request_base64,
-    const std::string& client_id,
-    const std::string& version,
-    const std::string& key_param) {
+std::string V4ProtocolManagerUtil::ComposeUrl(const std::string& prefix,
+                                              const std::string& method,
+                                              const std::string& request_base64,
+                                              const std::string& client_id,
+                                              const std::string& version,
+                                              const std::string& key_param) {
   DCHECK(!prefix.empty() && !method.empty() && !client_id.empty() &&
          !version.empty());
   std::string url =