Make header include guards great again

runtime/vm/uri.h

 // Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-#ifndef VM_URI_H_
-#define VM_URI_H_
+#ifndef RUNTIME_VM_URI_H_
+#define RUNTIME_VM_URI_H_
 
 #include "platform/utils.h"
 #include "vm/globals.h"
 
 namespace dart {
 
 struct ParsedUri {
   const char* scheme;
   const char* userinfo;
   const char* host;
   const char* port;
   const char* path;
   const char* query;
   const char* fragment;
 };
 
 // Parses a uri into its parts.  Returns false if the parse fails.
 bool ParseUri(const char* uri, ParsedUri* parsed_uri);
 
 // Resolves some reference uri with respect to a base uri.
 bool ResolveUri(const char* ref_uri,
                 const char* base_uri,
                 const char** target_uri);
 
 }  // namespace dart
 
-#endif  // VM_URI_H_
+#endif  // RUNTIME_VM_URI_H_