Add explicit to core/fetch, core/loader and modules/websockets

third_party/WebKit/Source/core/loader/CrossOriginPreflightResultCache.h

 /*
  * Copyright (C) 2008 Apple Inc. All Rights Reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 25 matching lines @@
 
 namespace blink {
 
 class HTTPHeaderMap;
 class ResourceResponse;
 
 class CrossOriginPreflightResultCacheItem {
     WTF_MAKE_NONCOPYABLE(CrossOriginPreflightResultCacheItem);
     USING_FAST_MALLOC(CrossOriginPreflightResultCacheItem);
 public:
-    CrossOriginPreflightResultCacheItem(StoredCredentials credentials)
+    explicit CrossOriginPreflightResultCacheItem(StoredCredentials credentials)
         : m_absoluteExpiryTime(0)
         , m_credentials(credentials)
     {
     }
 
     bool parse(const ResourceResponse&, String& errorDescription);
     bool allowsCrossOriginMethod(const String&, String& errorDescription) const;
     bool allowsCrossOriginHeaders(const HTTPHeaderMap&, String& errorDescription) const;
     bool allowsRequest(StoredCredentials, const String& method, const HTTPHeaderMap& requestHeaders) const;
 
@@ skipping 22 matching lines @@
     CrossOriginPreflightResultCache() { }
 
     typedef HashMap<std::pair<String, KURL>, std::unique_ptr<CrossOriginPreflightResultCacheItem>> CrossOriginPreflightResultHashMap;
 
     CrossOriginPreflightResultHashMap m_preflightHashMap;
 };
 
 } // namespace blink
 
 #endif