Simplify silent abort by raising SIGABRT directly.

Review URL: https://chromiumcodereview.appspot.com/9597012
Patch from Jonathan Liu <net147@gmail.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10916 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

src/platform-win32.cc

@@ -967,12 +967,8 @@ void OS::Sleep(int milliseconds) {
 
 void OS::Abort() {
   if (!IsDebuggerPresent()) {
-#ifdef _MSC_VER
     // Make the MSVCRT do a silent abort.
-    _set_abort_behavior(0, _WRITE_ABORT_MSG);
-    _set_abort_behavior(0, _CALL_REPORTFAULT);
-#endif  // _MSC_VER
-    abort();
+    raise(SIGABRT);
   } else {
     DebugBreak();
   }

src/win32-headers.h

@@ -56,6 +56,7 @@
 #include <windows.h>
 
 #ifdef V8_WIN32_HEADERS_FULL
+#include <signal.h>  // For raise().
 #include <time.h>  // For LocalOffset() implementation.
 #include <mmsystem.h>  // For timeGetTime().
 #ifdef __MINGW32__
@@ -78,7 +79,7 @@
 #ifndef __MINGW32__
 #include <wspiapi.h>
 #endif  // __MINGW32__
-#include <process.h>  // for _beginthreadex()
+#include <process.h>  // For _beginthreadex().
 #include <stdlib.h>
 #endif  // V8_WIN32_HEADERS_FULL