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

third_party/WebKit/Source/core/loader/SinkDocument.cpp

 /*
  * Copyright (C) 2010 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 20 matching lines @@
 namespace blink {
 
 class SinkDocumentParser : public RawDataDocumentParser {
 public:
     static SinkDocumentParser* create(SinkDocument* document)
     {
         return new SinkDocumentParser(document);
     }
 
 private:
-    SinkDocumentParser(SinkDocument* document)
+    explicit SinkDocumentParser(SinkDocument* document)
         : RawDataDocumentParser(document)
     {
     }
 
     // Ignore all data.
     void appendBytes(const char*, size_t) override { }
 };
 
 SinkDocument::SinkDocument(const DocumentInit& initializer)
     : HTMLDocument(initializer)
 {
     setCompatibilityMode(QuirksMode);
     lockCompatibilityMode();
     UseCounter::count(*this, UseCounter::SinkDocument);
     if (!isInMainFrame())
         UseCounter::count(*this, UseCounter::SinkDocumentInFrame);
 }
 
 DocumentParser* SinkDocument::createParser()
 {
     return SinkDocumentParser::create(this);
 }
 
 } // namespace blink