Make KURL::protocolIs take StringView (+ DCHECK cleanups)

third_party/WebKit/Source/platform/weborigin/KURL.h

 /*
  * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2011, 2012 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
@@ skipping 118 matching lines @@
   String pass() const;
   String path() const;
   // This method handles "parameters" separated by a semicolon.
   String lastPathComponent() const;
   String query() const;
   String fragmentIdentifier() const;
   bool hasFragmentIdentifier() const;
 
   String baseAsString() const;
 
-  // Returns true if the current URL's protocol is the same as the null-
-  // terminated ASCII argument. The argument must be lower-case.
-  bool protocolIs(const char*) const;
+  // Returns true if the current URL's protocol is the same as the StringView
+  // argument. The argument must be lower-case.
+  bool protocolIs(const StringView protocol) const;
   bool protocolIsData() const { return protocolIs("data"); }
   // This includes at least about:blank and about:srcdoc.
   bool protocolIsAbout() const { return protocolIs("about"); }
   bool protocolIsInHTTPFamily() const;
   bool isLocalFile() const;
   bool isAboutBlankURL() const;   // Is exactly about:blank.
   bool isAboutSrcdocURL() const;  // Is exactly about:srcdoc.
 
   bool setProtocol(const String&);
   void setHost(const String&);
@@ skipping 138 matching lines @@
 
 // KURLHash is the default hash for String
 template <>
 struct DefaultHash<blink::KURL> {
   typedef blink::KURLHash Hash;
 };
 
 }  // namespace WTF
 
 #endif  // KURL_h