Convert Pass()→std::move() in //net

net/url_request/url_request_throttler_entry.cc

Index: net/url_request/url_request_throttler_entry.cc
diff --git a/net/url_request/url_request_throttler_entry.cc b/net/url_request/url_request_throttler_entry.cc
index 8b8fae905dadde907cfb7d39f20ad1e03039320e..7c85edc10d78a1e6f1d882748166881d2684bce2 100644
--- a/net/url_request/url_request_throttler_entry.cc
+++ b/net/url_request/url_request_throttler_entry.cc
@@ -5,6 +5,7 @@
 #include "net/url_request/url_request_throttler_entry.h"
 
 #include <cmath>
+#include <utility>
 
 #include "base/logging.h"
 #include "base/metrics/field_trial.h"
@@ -57,7 +58,7 @@ scoped_ptr<base::Value> NetLogRejectedRequestCallback(
   dict->SetInteger("num_failures", num_failures);
   dict->SetInteger("release_after_ms",
                    static_cast<int>(release_after.InMilliseconds()));
-  return dict.Pass();
+  return std::move(dict);
 }
 
 URLRequestThrottlerEntry::URLRequestThrottlerEntry(