1 files changed, 34 insertions, 0 deletions
diff --git a/dom/media/gmp/rlz/lib/string_utils.cc b/dom/media/gmp/rlz/lib/string_utils.cc
new file mode 100644
index 000000000..b6a71acdb
--- /dev/null
+++ b/dom/media/gmp/rlz/lib/string_utils.cc
@@ -0,0 +1,34 @@
+// Copyright 2010 Google Inc. All Rights Reserved.
+// Use of this source code is governed by an Apache-style license that can be
+// found in the COPYING file.
+//
+// String manipulation functions used in the RLZ library.
+
+#include "rlz/lib/string_utils.h"
+
+namespace rlz_lib {
+
+bool BytesToString(const unsigned char* data,
+                   int data_len,
+                   std::string* string) {
+  if (!string)
+    return false;
+
+  string->clear();
+  if (data_len < 1 || !data)
+    return false;
+
+  static const char kHex[] = "0123456789ABCDEF";
+
+  // Fix the buffer size to begin with to avoid repeated re-allocation.
+  string->resize(data_len * 2);
+  int index = data_len;
+  while (index--) {
+    string->at(2 * index) = kHex[data[index] >> 4];  // high digit
+    string->at(2 * index + 1) = kHex[data[index] & 0x0F];  // low digit
+  }
+
+  return true;
+}
+
+}  // namespace rlz_lib