Add number() static methods to AtomicString class

Source/bindings/v8/V8StringResource.cpp

 /*
  * Copyright (C) 2009 Google 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
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 169 matching lines @@
     // are not safely published.
     ASSERT(isMainThread());
 
     // Most numbers used are <= 100. Even if they aren't used there's very little cost in using the space.
     const int kLowNumbers = 100;
     DEFINE_STATIC_LOCAL(Vector<AtomicString>, lowNumbers, (kLowNumbers + 1));
     String webCoreString;
     if (0 <= value && value <= kLowNumbers) {
         webCoreString = lowNumbers[value];
         if (!webCoreString) {
-            AtomicString valueString = AtomicString(String::number(value));
+            AtomicString valueString = AtomicString::number(value);
             lowNumbers[value] = valueString;
             webCoreString = valueString;
         }
     } else
         webCoreString = String::number(value);

[Inactive, 2013/11/24 21:48:13]

tkent, are you referring to this String::number() call? If so, it seems it
really does require a String, not an AtomicString.

[tkent, 2013/11/24 22:03:25]

I meant this one and another in int32ToWebCoreString() below.
I thought using String had some overhead in a case that the destination is a
reflected IDL attribute. However It's not easy to resolve it, and you don't need
to address it in this CL.

     return webCoreString;
 }
 
 String int32ToWebCoreString(int value)
 {
     // If we are on the main thread (this should always true for non-workers), call the faster one.
     if (isMainThread())
         return int32ToWebCoreStringFast(value);
     return String::number(value);
 }
 
 } // namespace WebCore