Use StringView for String and AtomicString operator==.

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

Index: third_party/WebKit/Source/wtf/text/AtomicString.h
diff --git a/third_party/WebKit/Source/wtf/text/AtomicString.h b/third_party/WebKit/Source/wtf/text/AtomicString.h
index ea3ee3c4b6f56af4db9698f5d5e7e165c2b4dd04..9a15200575ada8f621457fc62003ee7ad239df6e 100644
--- a/third_party/WebKit/Source/wtf/text/AtomicString.h
+++ b/third_party/WebKit/Source/wtf/text/AtomicString.h
@@ -232,54 +232,34 @@ class WTF_EXPORT AtomicString {
 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) {
-  return b == a;
-}
-inline bool operator==(const char* a, const AtomicString& b) {
+inline bool operator==(const String& 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 AtomicString& a, const char* b) {
+  return equalStringView(a, b);
 }
-inline bool operator==(const Vector<UChar>& a, const AtomicString& b) {
+inline bool operator==(const char* 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 AtomicString& a, const char* b) {
+inline bool operator!=(const String& a, const AtomicString& 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) {
+inline bool operator!=(const AtomicString& a, const char* 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);
 }