Move full hash caching logic to v4_get_hash_protocol_manager

components/safe_browsing_db/testing_util.h

Index: components/safe_browsing_db/testing_util.h
diff --git a/components/safe_browsing_db/testing_util.h b/components/safe_browsing_db/testing_util.h
index 76b319464c4a96b8a199bad1c783b6915a69e5da..fc32a9d4e72eaf1cf0c61affdff827938de689af 100644
--- a/components/safe_browsing_db/testing_util.h
+++ b/components/safe_browsing_db/testing_util.h
@@ -13,16 +13,6 @@
 
 namespace safe_browsing {
 
-inline bool operator==(const ThreatMetadata& lhs, const ThreatMetadata& rhs) {
-  return lhs.threat_pattern_type == rhs.threat_pattern_type &&
-         lhs.api_permissions == rhs.api_permissions &&
-         lhs.population_id == rhs.population_id;
-}
-
-inline bool operator!=(const ThreatMetadata& lhs, const ThreatMetadata& rhs) {
-  return !(lhs == rhs);
-}
-
 inline std::ostream& operator<<(std::ostream& os, const ThreatMetadata& meta) {
   os << "{threat_pattern_type=" << static_cast<int>(meta.threat_pattern_type)
      << ", api_permissions=[";