Fix some header guards in QUICHE.

PiperOrigin-RevId: 423154483

common/platform/api/quiche_export.h

diff --git a/common/platform/api/quiche_export.h b/common/platform/api/quiche_export.h
index 343985f..4f64819 100644
--- a/common/platform/api/quiche_export.h
+++ b/common/platform/api/quiche_export.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef THIRD_PARTY_QUICHE_PLATFORM_API_QUICHE_EXPORT_H_
-#define THIRD_PARTY_QUICHE_PLATFORM_API_QUICHE_EXPORT_H_
+#ifndef QUICHE_COMMON_PLATFORM_API_QUICHE_EXPORT_H_
+#define QUICHE_COMMON_PLATFORM_API_QUICHE_EXPORT_H_
 
 #include "quiche_platform_impl/quiche_export_impl.h"
 
@@ -18,4 +18,4 @@
 // defined in a header, or is built in Chromium as part of tests or tools.
 #define QUICHE_NO_EXPORT QUICHE_NO_EXPORT_IMPL
 
-#endif  // THIRD_PARTY_QUICHE_PLATFORM_API_QUICHE_EXPORT_H_
+#endif  // QUICHE_COMMON_PLATFORM_API_QUICHE_EXPORT_H_

common/platform/default/quiche_platform_impl/quic_testvalue_impl.h

diff --git a/common/platform/default/quiche_platform_impl/quic_testvalue_impl.h b/common/platform/default/quiche_platform_impl/quic_testvalue_impl.h
index f4678e7..bc0d95e 100644
--- a/common/platform/default/quiche_platform_impl/quic_testvalue_impl.h
+++ b/common/platform/default/quiche_platform_impl/quic_testvalue_impl.h
@@ -1,5 +1,5 @@
-#ifndef QUICHE_COMMON_PLATFORM_DEFAULT_QUIC_TESTVALUE_IMPL_H_
-#define QUICHE_COMMON_PLATFORM_DEFAULT_QUIC_TESTVALUE_IMPL_H_
+#ifndef QUICHE_COMMON_PLATFORM_DEFAULT_QUICHE_PLATFORM_IMPL_QUIC_TESTVALUE_IMPL_H_
+#define QUICHE_COMMON_PLATFORM_DEFAULT_QUICHE_PLATFORM_IMPL_QUIC_TESTVALUE_IMPL_H_
 
 #include "absl/strings/string_view.h"
 
@@ -10,4 +10,4 @@
 
 }  // namespace quic
 
-#endif  // QUICHE_COMMON_PLATFORM_DEFAULT_QUIC_TESTVALUE_IMPL_H_
+#endif  // QUICHE_COMMON_PLATFORM_DEFAULT_QUICHE_PLATFORM_IMPL_QUIC_TESTVALUE_IMPL_H_