WTF::notFound looks too much like a local variable.

Source/wtf/text/StringImpl.h

Index: Source/wtf/text/StringImpl.h
diff --git a/Source/wtf/text/StringImpl.h b/Source/wtf/text/StringImpl.h
index 02acb974ca2a7a141f5859da7f619200146c9489..68d3ec7d9d2a51a599e2647793ce63251de170a1 100644
--- a/Source/wtf/text/StringImpl.h
+++ b/Source/wtf/text/StringImpl.h
@@ -507,7 +507,7 @@ inline size_t find(const CharacterType* characters, unsigned length, CharacterTy
             return index;
         ++index;
     }
-    return notFound;
+    return kNotFound;
 }
 
 ALWAYS_INLINE size_t find(const UChar* characters, unsigned length, LChar matchCharacter, unsigned index = 0)
@@ -518,7 +518,7 @@ ALWAYS_INLINE size_t find(const UChar* characters, unsigned length, LChar matchC
 inline size_t find(const LChar* characters, unsigned length, UChar matchCharacter, unsigned index = 0)
 {
     if (matchCharacter & ~0xFF)
-        return notFound;
+        return kNotFound;
     return find(characters, length, static_cast<LChar>(matchCharacter), index);
 }
 
@@ -529,7 +529,7 @@ inline size_t find(const LChar* characters, unsigned length, CharacterMatchFunct
             return index;
         ++index;
     }
-    return notFound;
+    return kNotFound;
 }
 
 inline size_t find(const UChar* characters, unsigned length, CharacterMatchFunctionPtr matchFunction, unsigned index = 0)
@@ -539,7 +539,7 @@ inline size_t find(const UChar* characters, unsigned length, CharacterMatchFunct
             return index;
         ++index;
     }
-    return notFound;
+    return kNotFound;
 }
 
 template<typename CharacterType>
@@ -570,20 +570,20 @@ inline size_t findNextLineStart(const CharacterType* characters, unsigned length
                 return index;
         }
     }
-    return notFound;
+    return kNotFound;
 }
 
 template<typename CharacterType>
 inline size_t reverseFindLineTerminator(const CharacterType* characters, unsigned length, unsigned index = UINT_MAX)
 {
     if (!length)
-        return notFound;
+        return kNotFound;
     if (index >= length)
         index = length - 1;
     CharacterType c = characters[index];
     while ((c != '\n') && (c != '\r')) {
         if (!index--)
-            return notFound;
+            return kNotFound;
         c = characters[index];
     }
     return index;
@@ -593,12 +593,12 @@ template<typename CharacterType>
 inline size_t reverseFind(const CharacterType* characters, unsigned length, CharacterType matchCharacter, unsigned index = UINT_MAX)
 {
     if (!length)
-        return notFound;
+        return kNotFound;
     if (index >= length)
         index = length - 1;
     while (characters[index] != matchCharacter) {
         if (!index--)
-            return notFound;
+            return kNotFound;
     }
     return index;
 }
@@ -611,7 +611,7 @@ ALWAYS_INLINE size_t reverseFind(const UChar* characters, unsigned length, LChar
 inline size_t reverseFind(const LChar* characters, unsigned length, UChar matchCharacter, unsigned index = UINT_MAX)
 {
     if (matchCharacter & ~0xFF)
-        return notFound;
+        return kNotFound;
     return reverseFind(characters, length, static_cast<LChar>(matchCharacter), index);
 }