Move CPU features into its own static library.

src/trusted/cpu_features/arch/x86/cpu_x86_test.c

 /*
  * Copyright (c) 2012 The Native Client Authors. All rights reserved.
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef NACL_TRUSTED_BUT_NOT_TCB
 #error("This file is not meant for use in the TCB")
 #endif
 
 /*
- * nacl_cpuid_test.c
- * test main and subroutines for nacl_cpuid
+ * cpu_x86_test.c
+ * test main and subroutines for cpu_x86
  */
 #include "native_client/src/include/portability.h"
 #include <stdio.h>
-#include "native_client/src/trusted/validator/x86/nacl_cpuid.h"
+#include "native_client/src/trusted/cpu_features/arch/x86/cpu_x86.h"
 
-int main(int argc, char *argv[]) {
+int main(void) {
   NaClCPUFeaturesX86 fv;
   NaClCPUData cpu_data;
   int feature_id;
   NaClCPUDataGet(&cpu_data);
 
   NaClGetCurrentCPUFeaturesX86((NaClCPUFeatures *) &fv);
   if (NaClArchSupportedX86(&fv)) {
     printf("This is a native client %d-bit %s compatible computer\n",
            NACL_TARGET_SUBARCH, GetCPUIDString(&cpu_data));
   } else {
     if (!NaClGetCPUFeatureX86(&fv, NaClCPUFeatureX86_CPUIDSupported)) {
       printf("Computer doesn't support CPUID\n");
     }
     if (!NaClGetCPUFeatureX86(&fv, NaClCPUFeatureX86_CPUSupported)) {
       printf("Computer id %s is not supported\n", GetCPUIDString(&cpu_data));
     }
   }
 
   printf("This processor has:\n");
   for (feature_id = 0; feature_id < NaClCPUFeatureX86_Max; ++feature_id) {
     if (NaClGetCPUFeatureX86(&fv, feature_id))
       printf("        %s\n", NaClGetCPUFeatureX86Name(feature_id));
   }
   return 0;
 }