Qualify string and vector with std namespace when used without

using-declaration (#118).  r=bryner

http://groups.google.com/group/airbag-dev/browse_thread/thread/4946d156a37331df


git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@113 4c0a9323-5329-0410-9bdc-e9ce6186880e

src/processor/minidump_stackwalk.cc

@@ -422,7 +422,7 @@ int main(int argc, char **argv) {
   }
 
   // extra arguments are symbol paths
-  vector<string> symbol_paths;
+  std::vector<std::string> symbol_paths;
   if (argc > symbol_path_arg) {
     for (int argi = symbol_path_arg; argi < argc; ++argi)
       symbol_paths.push_back(argv[argi]);