Hook up custom Win 64 SEH to v8

gin/public/debug.h

Index: gin/public/debug.h
diff --git a/gin/public/debug.h b/gin/public/debug.h
index f668b8237a6f24e30619f625710bf5135d47d556..e2f03b01de857b253db93721c9640cdb7ffc8408 100644
--- a/gin/public/debug.h
+++ b/gin/public/debug.h
@@ -5,6 +5,7 @@
 #ifndef GIN_PUBLIC_DEBUG_H_
 #define GIN_PUBLIC_DEBUG_H_
 
+#include "build/build_config.h"
 #include "gin/gin_export.h"
 #include "v8/include/v8.h"
 
@@ -27,6 +28,21 @@ class GIN_EXPORT Debug {
    * SetJitCodeEventHandler was invoked.
    */
   static void SetJitCodeEventHandler(v8::JitCodeEventHandler event_handler);
+
+#if defined(OS_WIN)
+  typedef void (__cdecl *CodeRangeCreatedCallback)(void*, size_t);
+
+  /* Sets a callback that is invoked for every new code range being created.
+   *
+   * On Win64, exception handling in jitted code is broken due to the fact
+   * that JS stack frames are not ABI compliant. It is possible to install
+   * custom handlers for the code range which holds the jitted code to work
+   * around this issue.
+   *
+   * https://code.google.com/p/v8/issues/detail?id=3598
+   */
+  static void SetCodeRangeCreatedCallback(CodeRangeCreatedCallback callback);
+#endif
 };
 
 }  // namespace gin