Use StringView for String and AtomicString operator==.

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

 /*
  * Copyright (C) 2004, 2005, 2006, 2008 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,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ skipping 214 matching lines @@
   }
   static PassRefPtr<StringImpl> addSlowCase(StringImpl*);
 #if OS(MACOSX)
   static PassRefPtr<StringImpl> add(CFStringRef);
 #endif
 };
 
 inline bool operator==(const AtomicString& a, const AtomicString& b) {
   return a.impl() == b.impl();
 }
-WTF_EXPORT bool operator==(const AtomicString&, const LChar*);
-inline bool operator==(const AtomicString& a, const char* b) {
-  return WTF::equal(a.impl(), reinterpret_cast<const LChar*>(b));
-}
-inline bool operator==(const AtomicString& a, const Vector<UChar>& b) {
-  return a.impl() && equal(a.impl(), b.data(), b.size());
-}
 inline bool operator==(const AtomicString& a, const String& b) {
+  // We don't use equalStringView so we get the isAtomic() optimization inside
+  // WTF::equal.
   return equal(a.impl(), b.impl());
 }
-inline bool operator==(const LChar* a, const AtomicString& b) {
+inline bool operator==(const String& a, const AtomicString& b) {
   return b == a;
 }
+inline bool operator==(const AtomicString& a, const char* b) {
+  return equalStringView(a, b);
+}
 inline bool operator==(const char* a, const AtomicString& b) {
   return b == a;
 }
-inline bool operator==(const String& a, const AtomicString& b) {
-  return equal(a.impl(), b.impl());
-}
-inline bool operator==(const Vector<UChar>& a, const AtomicString& b) {
-  return b == a;
-}
 
 inline bool operator!=(const AtomicString& a, const AtomicString& b) {
   return a.impl() != b.impl();
 }
-inline bool operator!=(const AtomicString& a, const LChar* b) {
+inline bool operator!=(const AtomicString& a, const String& b) {
+  return !(a == b);
+}
+inline bool operator!=(const String& a, const AtomicString& b) {
   return !(a == b);
 }
 inline bool operator!=(const AtomicString& a, const char* b) {
   return !(a == b);
 }
-inline bool operator!=(const AtomicString& a, const String& b) {
-  return !equal(a.impl(), b.impl());
-}
-inline bool operator!=(const AtomicString& a, const Vector<UChar>& b) {
-  return !(a == b);
-}
-inline bool operator!=(const LChar* a, const AtomicString& b) {
-  return !(b == a);
-}
 inline bool operator!=(const char* a, const AtomicString& b) {
-  return !(b == a);
-}
-inline bool operator!=(const String& a, const AtomicString& b) {
-  return !equal(a.impl(), b.impl());
-}
-inline bool operator!=(const Vector<UChar>& a, const AtomicString& b) {
   return !(a == b);
 }
 
 // Define external global variables for the commonly used atomic strings.
 // These are only usable from the main thread.
 WTF_EXPORT extern const AtomicString& nullAtom;
 WTF_EXPORT extern const AtomicString& emptyAtom;
 WTF_EXPORT extern const AtomicString& starAtom;
 WTF_EXPORT extern const AtomicString& xmlAtom;
 WTF_EXPORT extern const AtomicString& xmlnsAtom;
@@ skipping 29 matching lines @@
 using WTF::AtomicString;
 using WTF::nullAtom;
 using WTF::emptyAtom;
 using WTF::starAtom;
 using WTF::xmlAtom;
 using WTF::xmlnsAtom;
 using WTF::xlinkAtom;
 
 #include "wtf/text/StringConcatenate.h"
 #endif  // AtomicString_h