Eliminate 'if defiend(CHECK) to avoid having to different binaries for the same template function.

base/tuple.h

Index: base/tuple.h
diff --git a/base/tuple.h b/base/tuple.h
index bfe65628af8adc6e4e2f2143b978b1907773c8b8..6b0d336219b9e1cf40d5d042de7d69993b986fd3 100644
--- a/base/tuple.h
+++ b/base/tuple.h
@@ -30,6 +30,10 @@
 #define BASE_TUPLE_H__
 #pragma once
 
+#if defined(OS_CHROMEOS)
+// To troubleshoot crosbug.com/7327.
+#include "base/logging.h"
+#endif
 // Traits ----------------------------------------------------------------------
 //
 // A simple traits class for tuple arguments.
@@ -545,7 +549,7 @@ inline void DispatchToMethod(ObjT* obj, Method method, const A& arg) {
 template <class ObjT, class Method, class A>
 inline void DispatchToMethod(ObjT* obj, Method method, const Tuple1<A>& arg) {
 
-#if defined(OS_CHROMEOS) && defined(CHECK)
+#if defined(OS_CHROMEOS)
   // To troubleshoot crosbug.com/7327.
   CHECK(obj);
   CHECK(&arg);