Eliminate third_party/mojo/src from all targets' include paths

third_party/mojo/src/mojo/public/cpp/bindings/lib/validation_errors.h

Index: third_party/mojo/src/mojo/public/cpp/bindings/lib/validation_errors.h
diff --git a/third_party/mojo/src/mojo/public/cpp/bindings/lib/validation_errors.h b/third_party/mojo/src/mojo/public/cpp/bindings/lib/validation_errors.h
index 1d15bc9acf8565ac5bdaec42057e2d82fd049e57..27084fa8c6b4507499dbb2878728c9f1c691a80f 100644
--- a/third_party/mojo/src/mojo/public/cpp/bindings/lib/validation_errors.h
+++ b/third_party/mojo/src/mojo/public/cpp/bindings/lib/validation_errors.h
@@ -2,10 +2,10 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef MOJO_PUBLIC_CPP_BINDINGS_LIB_VALIDATION_ERRORS_H_
-#define MOJO_PUBLIC_CPP_BINDINGS_LIB_VALIDATION_ERRORS_H_
+#ifndef THIRD_PARTY_MOJO_SRC_MOJO_PUBLIC_CPP_BINDINGS_LIB_VALIDATION_ERRORS_H_
+#define THIRD_PARTY_MOJO_SRC_MOJO_PUBLIC_CPP_BINDINGS_LIB_VALIDATION_ERRORS_H_
 
-#include "mojo/public/cpp/system/macros.h"
+#include "third_party/mojo/src/mojo/public/cpp/system/macros.h"
 
 namespace mojo {
 namespace internal {
@@ -119,4 +119,4 @@ class SerializationWarningObserverForTesting {
       << ValidationErrorToString(error) << " at the receiving side ("    \
       << description << ").";
 
-#endif  // MOJO_PUBLIC_CPP_BINDINGS_LIB_VALIDATION_ERRORS_H_
+#endif  // THIRD_PARTY_MOJO_SRC_MOJO_PUBLIC_CPP_BINDINGS_LIB_VALIDATION_ERRORS_H_