Add a rand_util method for generating a random string.

base/rand_util.h

Index: base/rand_util.h
===================================================================
--- base/rand_util.h	(revision 83409)
+++ base/rand_util.h	(working copy)
@@ -6,6 +6,8 @@
 #define BASE_RAND_UTIL_H_
 #pragma once
 
+#include <string>
+
 #include "base/base_api.h"
 #include "base/basictypes.h"
 
@@ -27,6 +29,9 @@
 // Returns a random double in range [0, 1). Thread-safe.
 BASE_API double RandDouble();
 
+// Returns a random string of the specified length.
+BASE_API std::string RandString(int length);

[wtc, 2011/04/29 18:03:56]

The |length| parameter should have the type size_t.

This function should be named RandBytes or something along
that line.  "String" implies text (as opposed to binary data)
to most people.  I would also use a C-style buffer
(void* data, size_t length) to receive the output.

+
 }  // namespace base
 
 #endif  // BASE_RAND_UTIL_H_