Use Chrome compatible naming for compiler specifics.

src/base/sys-info.h

Index: src/base/sys-info.h
diff --git a/src/base/sys-info.h b/src/base/sys-info.h
index 95964d479d00339fcbbbebf65c3dbbef8f60c7c0..d1658fc09dcc894e3f8db2177fe6e6a276a41d56 100644
--- a/src/base/sys-info.h
+++ b/src/base/sys-info.h
@@ -6,12 +6,12 @@
 #define V8_BASE_SYS_INFO_H_
 
 #include "include/v8stdint.h"
-#include "src/base/build_config.h"
+#include "src/base/compiler-specific.h"
 
 namespace v8 {
 namespace base {
 
-class SysInfo V8_FINAL {
+class SysInfo FINAL {
  public:
   // Returns the number of logical processors/core on the current machine.
   static int NumberOfProcessors();