Adding CHECKs to troubleshoot the crash issue tuple.h/browser_render_process_host.cc

base/tuple.h

Index: base/tuple.h
diff --git a/base/tuple.h b/base/tuple.h
index b67d924906aa2642cff57d9e46e8fafe0bfe4094..bfe65628af8adc6e4e2f2143b978b1907773c8b8 100644
--- a/base/tuple.h
+++ b/base/tuple.h
@@ -544,6 +544,13 @@ inline void DispatchToMethod(ObjT* obj, Method method, const A& arg) {
 
 template <class ObjT, class Method, class A>
 inline void DispatchToMethod(ObjT* obj, Method method, const Tuple1<A>& arg) {
+
+#if defined(OS_CHROMEOS) && defined(CHECK)
+  // To troubleshoot crosbug.com/7327.
+  CHECK(obj);
+  CHECK(&arg);
+  CHECK(method);
+#endif
   (obj->*method)(arg.a);
 }