Move CPU() macro to it's own header from wtf/Platform.h

Source/core/html/canvas/DataView.cpp

 /*
  * Copyright (C) 2010 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
@@ skipping 10 matching lines @@
  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #include "config.h"
 #include "core/html/canvas/DataView.h"
 
 #include "core/dom/ExceptionCode.h"
 #include "core/html/canvas/CheckedInt.h"
+#include "wtf/CPU.h"
 
 namespace {
 
 template<typename T>
 union Value {
     T data;
     char bytes[sizeof(T)];
 };
 
 }
@@ skipping 195 matching lines @@
     setData<double>(byteOffset, value, littleEndian, ec);
 }
 
 void DataView::neuter()
 {
     ArrayBufferView::neuter();
     m_byteLength = 0;
 }
 
 }