Cleanup: Remove the C version of GetUrandomFD()

base/rand_util.h

Index: base/rand_util.h
diff --git a/base/rand_util.h b/base/rand_util.h
index 8d795a3393013c7b2c19896426f1c308d92d3f6c..82e548b82923d45d0c805be920981528e0c60887 100644
--- a/base/rand_util.h
+++ b/base/rand_util.h
@@ -1,4 +1,4 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// Copyright (c) 2012 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.
 
@@ -43,6 +43,10 @@ BASE_EXPORT void RandBytes(void* output, size_t output_length);
 // Note that this is a variation of |RandBytes| with a different return type.
 BASE_EXPORT std::string RandBytesAsString(size_t length);
 
+#ifdef OS_POSIX
+BASE_EXPORT int GetUrandomFD();
+#endif
+
 }  // namespace base
 
 #endif  // BASE_RAND_UTIL_H_