NoState Prefetch: nostate prefetch browser tests.

chrome/test/data/prerender/prefetch2.js

Index: chrome/test/data/prerender/prefetch2.js
diff --git a/base/time/clock.cc b/chrome/test/data/prerender/prefetch2.js
similarity index 64%
copy from base/time/clock.cc
copy to chrome/test/data/prerender/prefetch2.js
index 34dc37e38b53fb6f08324d78b53eda418732f598..0b30657652ae72d244388e2b01d2b51adcaf2dea 100644
--- a/base/time/clock.cc
+++ b/chrome/test/data/prerender/prefetch2.js
@@ -2,10 +2,5 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#include "base/time/clock.h"
-
-namespace base {
-
-Clock::~Clock() {}
-
-}  // namespace base
+// This is an additional script used to separately count loads from
+// prefetch_page2.html.