GTTF: Move core parts of test_launcher down to base.

chrome/test/base/empty_browser_test.cc

Index: chrome/test/base/empty_browser_test.cc
diff --git a/chrome/test/base/empty_browser_test.cc b/chrome/test/base/empty_browser_test.cc
deleted file mode 100644
index 15ab7d48ef885bd00b73cc953fa5548b4677b1d5..0000000000000000000000000000000000000000
--- a/chrome/test/base/empty_browser_test.cc
+++ /dev/null
@@ -1,10 +0,0 @@
-// Copyright (c) 2012 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "chrome/test/base/in_process_browser_test.h"
-
-// An empty test (it starts up and shuts down the browser as part of its
-// setup and teardown) used to prefetch all of the browser code into memory.
-IN_PROC_BROWSER_TEST_F(InProcessBrowserTest, Empty) {
-}