Provide default implementation for quiche_flag_utils

PiperOrigin-RevId: 424723689
diff --git a/common/platform/api/quiche_flag_utils.h b/common/platform/api/quiche_flag_utils.h
index 0534064..fcd6623 100644
--- a/common/platform/api/quiche_flag_utils.h
+++ b/common/platform/api/quiche_flag_utils.h
@@ -5,7 +5,7 @@
 #ifndef QUICHE_COMMON_PLATFORM_API_QUICHE_FLAG_UTILS_H_
 #define QUICHE_COMMON_PLATFORM_API_QUICHE_FLAG_UTILS_H_
 
-#include "net/quiche/common/platform/impl/quiche_flag_utils_impl.h"
+#include "quiche_platform_impl/quiche_flag_utils_impl.h"
 
 #define QUICHE_RELOADABLE_FLAG_COUNT QUICHE_RELOADABLE_FLAG_COUNT_IMPL
 #define QUICHE_RELOADABLE_FLAG_COUNT_N QUICHE_RELOADABLE_FLAG_COUNT_N_IMPL
diff --git a/common/platform/default/quiche_platform_impl/quiche_flag_utils_impl.h b/common/platform/default/quiche_platform_impl/quiche_flag_utils_impl.h
new file mode 100644
index 0000000..c38f75c
--- /dev/null
+++ b/common/platform/default/quiche_platform_impl/quiche_flag_utils_impl.h
@@ -0,0 +1,29 @@
+// Copyright 2022 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef QUICHE_COMMON_PLATFORM_DEFAULT_QUICHE_PLATFORM_IMPL_QUICHE_FLAG_UTILS_IMPL_H_
+#define QUICHE_COMMON_PLATFORM_DEFAULT_QUICHE_PLATFORM_IMPL_QUICHE_FLAG_UTILS_IMPL_H_
+
+#define QUICHE_RELOADABLE_FLAG_COUNT_IMPL(flag) \
+  do {                                          \
+  } while (0)
+#define QUICHE_RELOADABLE_FLAG_COUNT_N_IMPL(flag, instance, total) \
+  do {                                                             \
+  } while (0)
+
+#define QUICHE_RESTART_FLAG_COUNT_IMPL(flag) \
+  do {                                       \
+  } while (0)
+#define QUICHE_RESTART_FLAG_COUNT_N_IMPL(flag, instance, total) \
+  do {                                                          \
+  } while (0)
+
+#define QUICHE_CODE_COUNT_IMPL(name) \
+  do {                               \
+  } while (0)
+#define QUICHE_CODE_COUNT_N_IMPL(name, instance, total) \
+  do {                                                  \
+  } while (0)
+
+#endif  // QUICHE_COMMON_PLATFORM_DEFAULT_QUICHE_PLATFORM_IMPL_QUICHE_FLAG_UTILS_IMPL_H_