fix C++ wrapper

src/core/lib/profiling/timers.h

@@ -92,18 +92,20 @@ void gpr_timer_set_enabled(int enabled);
 namespace grpc {
 class ProfileScope {
  public:
-  ProfileScope(const char *desc, bool important) : desc_(desc) {
-    GPR_TIMER_BEGIN(desc_, important ? 1 : 0);
+  ProfileScope(const char *desc, bool important, const char *file, int line)
+      : desc_(desc) {
+    gpr_timer_begin((desc_, important ? 1 : 0, file, line);
   }
-  ~ProfileScope() { GPR_TIMER_END(desc_, 0); }
+  ~ProfileScope() { gpr_timer_end(desc_, 0, "n/a", 0); }
 
  private:
   const char *const desc_;
 };
 }  // namespace grpc
 
-#define GPR_TIMER_SCOPE(tag, important) \
-  ::grpc::ProfileScope _profile_scope_##__LINE__((tag), (important))
+#define GPR_TIMER_SCOPE(tag, important)                                        \
+  ::grpc::ProfileScope _profile_scope_##__LINE__((tag), (important), __FILE__, \
+                                                 __LINE__)
 #else
 #define GPR_TIMER_SCOPE(tag, important) \
   do {                                  \