Have the stack overflow code use the correct stack size set by the platform/thread.h

platform/thread_win.cc

Index: platform/thread_win.cc
===================================================================
--- platform/thread_win.cc	(revision 8702)
+++ platform/thread_win.cc	(working copy)
@@ -49,8 +49,8 @@
 int Thread::Start(ThreadStartFunction function, uword parameter) {
   ThreadStartData* start_data = new ThreadStartData(function, parameter);
   uint32_t tid;
-  uintptr_t thread =
-      _beginthreadex(NULL, 64 * KB, ThreadEntry, start_data, 0, &tid);
+  uintptr_t thread = _beginthreadex(NULL, Thread::GetMaxStackSize(),
+                                    ThreadEntry, start_data, 0, &tid);
   if (thread == -1L || thread == 0) {
 #ifdef DEBUG
     fprintf(stderr, "_beginthreadex error: %d (%s)\n", errno, strerror(errno));
@@ -83,6 +83,12 @@
 }
 
 
+intptr_t Thread::GetMaxStackSize() {
+  const int kStackSize = (256 * KB);
+  return kStackSize;
+}
+
+
 void Thread::SetThreadLocal(ThreadLocalKey key, uword value) {
   ASSERT(key != kUnsetThreadLocalKey);
   BOOL result = TlsSetValue(key, reinterpret_cast<void*>(value));