Merge V8 5.3.332.45.  DO NOT MERGE

Test: Manual

FPIIM-449

Change-Id: Id3254828b068abdea3cb10442e0172a8c9a98e03
(cherry picked from commit 13e2dadd00298019ed862f2b2fc5068bba730bcf)
diff --git a/src/base/win32-headers.h b/src/base/win32-headers.h
index 20ec8e0..b61ce71 100644
--- a/src/base/win32-headers.h
+++ b/src/base/win32-headers.h
@@ -27,10 +27,10 @@
 #ifndef NOMCX
 #define NOMCX
 #endif
-// Require Windows XP or higher (this is required for the RtlCaptureContext
-// function to be present).
+// Require Windows Vista or higher (this is required for the
+// QueryThreadCycleTime function to be present).
 #ifndef _WIN32_WINNT
-#define _WIN32_WINNT 0x501
+#define _WIN32_WINNT 0x0600
 #endif
 
 #include <windows.h>