Relocating files in the nacl repo that belong in chrome.

ppapi/native_client/src/untrusted/nacl_ppapi_util/string_buffer.h

+/*
+ * Copyright (c) 2011 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 NATIVE_CLIENT_TESTS_MANIFEST_FILE_STRING_BUFFER_H_
+#define NATIVE_CLIENT_TESTS_MANIFEST_FILE_STRING_BUFFER_H_
+
+#include <string>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <inttypes.h>
+
+namespace nacl {
+
+class StringBuffer {
+ public:
+  StringBuffer();
+  ~StringBuffer();
+  void DiscardOutput();
+  void Printf(char const *fmt, ...) __attribute__((format(printf, 2, 3)));
+  std::string ToString() {
+    return std::string(buffer_, insert_);
+  }
+
+ private:
+  size_t  nbytes_;
+  size_t  insert_;
+  char    *buffer_;
+};
+
+}  // namespace nacl
+
+#endif