Make string_util::WriteInto() DCHECK() that the supplied |length_with_null| > 1, meaning that the...

base/rand_util_unittest.cc

Index: base/rand_util_unittest.cc
===================================================================
--- base/rand_util_unittest.cc	(revision 107404)
+++ base/rand_util_unittest.cc	(working copy)
@@ -41,8 +41,8 @@
 }
 
 TEST(RandUtilTest, RandBytesAsString) {
-  std::string random_string = base::RandBytesAsString(0);
-  EXPECT_EQ(0U, random_string.size());
+  std::string random_string = base::RandBytesAsString(1);
+  EXPECT_EQ(1U, random_string.size());
   random_string = base::RandBytesAsString(145);
   EXPECT_EQ(145U, random_string.size());
   char accumulator = 0;