Use StringView for startsWith and endsWith.

third_party/WebKit/Source/wtf/text/WTFString.h

 /*
  * (C) 1999 Lars Knoll (knoll@kde.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2012, 2013 Apple Inc. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
@@ skipping 214 matching lines @@
 
     template<size_t inlineCapacity>
     void prependTo(Vector<UChar, inlineCapacity>&, unsigned pos = 0, unsigned len = UINT_MAX) const;
 
     UChar32 characterStartingAt(unsigned) const;
     template<typename CharacterType>
     bool contains(CharacterType c) const { return find(c) != kNotFound; }
     bool contains(const LChar* str, TextCaseSensitivity caseSensitivity = TextCaseSensitive) const { return find(str, 0, caseSensitivity) != kNotFound; }
     bool contains(const String& str, TextCaseSensitivity caseSensitivity = TextCaseSensitive) const { return find(str, 0, caseSensitivity) != kNotFound; }
 
-    bool startsWith(const String& s, TextCaseSensitivity caseSensitivity = TextCaseSensitive) const
-        { return m_impl ? DISPATCH_CASE_OP(caseSensitivity, m_impl->startsWith, (s.impl())) : s.isEmpty(); }
+    bool startsWith(const StringView& prefix, TextCaseSensitivity caseSensitivity = TextCaseSensitive) const
+        { return m_impl ? DISPATCH_CASE_OP(caseSensitivity, m_impl->startsWith, (prefix)) : prefix.isEmpty(); }
     bool startsWith(UChar character) const
         { return m_impl ? m_impl->startsWith(character) : false; }
-    template<unsigned matchLength>
-    bool startsWith(const char (&prefix)[matchLength], TextCaseSensitivity caseSensitivity = TextCaseSensitive) const
-        { return m_impl ? DISPATCH_CASE_OP(caseSensitivity, m_impl->startsWith, (prefix, matchLength - 1)) : !matchLength; }
 
-    bool endsWith(const String& s, TextCaseSensitivity caseSensitivity = TextCaseSensitive) const
-        { return m_impl ? DISPATCH_CASE_OP(caseSensitivity, m_impl->endsWith, (s.impl())) : s.isEmpty(); }
+    bool endsWith(const StringView& suffix, TextCaseSensitivity caseSensitivity = TextCaseSensitive) const
+        { return m_impl ? DISPATCH_CASE_OP(caseSensitivity, m_impl->endsWith, (suffix)) : suffix.isEmpty(); }
     bool endsWith(UChar character) const
         { return m_impl ? m_impl->endsWith(character) : false; }
-    template<unsigned matchLength>
-    bool endsWith(const char (&prefix)[matchLength], TextCaseSensitivity caseSensitivity = TextCaseSensitive) const
-        { return m_impl ? DISPATCH_CASE_OP(caseSensitivity, m_impl->endsWith, (prefix, matchLength - 1)) : !matchLength; }
 
     void append(const String&);
     void append(LChar);
     void append(char c) { append(static_cast<LChar>(c)); }
     void append(UChar);
     void append(const LChar*, unsigned length);
     void append(const char* charactersToAppend, unsigned length) { append(reinterpret_cast<const LChar*>(charactersToAppend), length); }
     void append(const UChar*, unsigned length);
     void insert(const String&, unsigned pos);
     void insert(const LChar*, unsigned length, unsigned pos);
@@ skipping 188 matching lines @@
 inline bool operator!=(const Vector<char, inlineCapacity>& a, const String& b) { return !(a == b); }
 template<size_t inlineCapacity>
 inline bool operator!=(const String& a, const Vector<char, inlineCapacity>& b) { return b != a; }
 
 inline bool equalIgnoringCase(const String& a, const String& b) { return equalIgnoringCase(a.impl(), b.impl()); }
 inline bool equalIgnoringCase(const String& a, const LChar* b) { return equalIgnoringCase(a.impl(), b); }
 inline bool equalIgnoringCase(const String& a, const char* b) { return equalIgnoringCase(a.impl(), reinterpret_cast<const LChar*>(b)); }
 inline bool equalIgnoringCase(const LChar* a, const String& b) { return equalIgnoringCase(a, b.impl()); }
 inline bool equalIgnoringCase(const char* a, const String& b) { return equalIgnoringCase(reinterpret_cast<const LChar*>(a), b.impl()); }
 
-inline bool equalIgnoringASCIICase(const String& a, const String& b) { return equalIgnoringASCIICase(a.impl(), b.impl()); }
-inline bool equalIgnoringASCIICase(const String& a, const LChar* b) { return equalIgnoringASCIICase(a.impl(), b); }
-inline bool equalIgnoringASCIICase(const String& a, const char* b) { return equalIgnoringASCIICase(a.impl(), b); }
-
 inline bool equalPossiblyIgnoringCase(const String& a, const String& b, bool ignoreCase)
 {
     return ignoreCase ? equalIgnoringCase(a, b) : (a == b);
 }
 
 inline bool equalIgnoringNullity(const String& a, const String& b) { return equalIgnoringNullity(a.impl(), b.impl()); }
 
 template<size_t inlineCapacity>
 inline bool equalIgnoringNullity(const Vector<UChar, inlineCapacity>& a, const String& b) { return equalIgnoringNullity(a, b.impl()); }
 
@@ skipping 187 matching lines @@
 using WTF::charactersAreAllASCII;
 using WTF::equal;
 using WTF::equalIgnoringCase;
 using WTF::find;
 using WTF::isAllSpecialCharacters;
 using WTF::isSpaceOrNewline;
 using WTF::reverseFind;
 
 #include "wtf/text/AtomicString.h"
 #endif // WTFString_h