Implement navigator.hardwareConcurrency

Source/core/frame/NavigatorCPU.h

Index: Source/core/frame/NavigatorCPU.h
diff --git a/Source/core/css/resolver/StyleResolverParentScope.cpp b/Source/core/frame/NavigatorCPU.h
similarity index 59%
copy from Source/core/css/resolver/StyleResolverParentScope.cpp
copy to Source/core/frame/NavigatorCPU.h
index bde3a362aed64146b76b1b703260b6e6605bdfa7..f6c770b5451e54bba98b26a78a9de3bc31be1517 100644
--- a/Source/core/css/resolver/StyleResolverParentScope.cpp
+++ b/Source/core/frame/NavigatorCPU.h
@@ -2,12 +2,16 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#include "config.h"
-
-#include "core/css/resolver/StyleResolverParentScope.h"
+#ifndef NavigatorCPU_h
+#define NavigatorCPU_h
 
 namespace WebCore {
 
-StyleResolverParentScope* StyleResolverParentScope::s_currentScope = 0;
+class NavigatorCPU {
+public:
+    unsigned cores();
+};
 
 } // namespace WebCore
+
+#endif // NavigatorCPU_h