Refactor implementation constants.

Bug 19353282

Change-Id: If2eb9f2d78c3a44b720bb1f223711411b576d710
Reviewed-on: https://swiftshader-review.googlesource.com/5140
Reviewed-by: Alexis Hétu <sugoi@google.com>
Tested-by: Nicolas Capens <capn@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>
diff --git a/src/Main/SwiftConfig.cpp b/src/Main/SwiftConfig.cpp
index d80e344..9dce441 100644
--- a/src/Main/SwiftConfig.cpp
+++ b/src/Main/SwiftConfig.cpp
@@ -22,10 +22,10 @@
 #include <sys/stat.h>
 #include <string.h>
 
-extern Profiler profiler;
-
 namespace sw
 {
+	extern Profiler profiler;
+
 	std::string itoa(int number)
 	{
 		std::stringstream ss;