Unreviewed, rolling out r206522.

Roll r206506 back in since the build fix landed in r206521

Reverted changeset:

"Unreviewed, rolling out r206506."
https://bugs.webkit.org/show_bug.cgi?id=162682
http://trac.webkit.org/changeset/206522

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@206525 268f45cc-cd09-0410-ab3c-d52691b4dbfc
diff --git a/Source/JavaScriptCore/assembler/MaxFrameExtentForSlowPathCall.h b/Source/JavaScriptCore/assembler/MaxFrameExtentForSlowPathCall.h
index bd93599..04ca0a7 100644
--- a/Source/JavaScriptCore/assembler/MaxFrameExtentForSlowPathCall.h
+++ b/Source/JavaScriptCore/assembler/MaxFrameExtentForSlowPathCall.h
@@ -23,8 +23,7 @@
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
  */
 
-#ifndef MaxFrameExtentForSlowPathCall_h
-#define MaxFrameExtentForSlowPathCall_h
+#pragma once
 
 #include "Register.h"
 #include "StackAlignment.h"
@@ -82,6 +81,3 @@
 static const size_t maxFrameExtentForSlowPathCallInRegisters = maxFrameExtentForSlowPathCall / sizeof(Register);
 
 } // namespace JSC
-
-#endif // MaxFrameExtentForSlowPathCall_h
-