win: Some %zu to PRIuS

util/misc/uuid_test.cc

Index: util/misc/uuid_test.cc
diff --git a/util/misc/uuid_test.cc b/util/misc/uuid_test.cc
index 39ccf6b092be2d35d1e59cdef097ebdba3235efb..01f3b6a5f73718d4352f3ab62dc8e15d662cf291 100644
--- a/util/misc/uuid_test.cc
+++ b/util/misc/uuid_test.cc
@@ -19,6 +19,7 @@
 #include <string>
 
 #include "base/basictypes.h"
+#include "base/format_macros.h"
 #include "base/strings/stringprintf.h"
 #include "gtest/gtest.h"
 
@@ -180,8 +181,8 @@ TEST(UUID, FromString) {
 
   for (size_t index = 0; index < arraysize(kCases); ++index) {
     const TestCase& test_case = kCases[index];
-    SCOPED_TRACE(
-        base::StringPrintf("index %zu: %s", index, test_case.uuid_string));
+    SCOPED_TRACE(base::StringPrintf(
+        "index %" PRIuS ": %s", index, test_case.uuid_string));
 
     UUID uuid;
     EXPECT_EQ(test_case.success,