Remove flag --test-sandbox

chrome/test/security_tests/sandbox_browsertest_win.cc

-// Copyright 2013 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 "base/command_line.h"
-#include "chrome/browser/ui/browser.h"
-#include "chrome/browser/ui/tabs/tab_strip_model.h"
-#include "chrome/common/chrome_switches.h"
-#include "chrome/test/base/in_process_browser_test.h"
-
-class SandboxWinTest : public InProcessBrowserTest {
- protected:
-  SandboxWinTest() : InProcessBrowserTest() {}
-
-  virtual void SetUpCommandLine(CommandLine* command_line) OVERRIDE {
-    command_line->AppendSwitchASCII(switches::kTestSandbox,
-                                    "security_tests.dll");
-  }
-};
-
-// Need a cross-platform test library: http://crbug.com/45771
-// Verifies that chrome is running properly.
-IN_PROC_BROWSER_TEST_F(SandboxWinTest, ExecuteDll) {
-  EXPECT_EQ(1, browser()->tab_strip_model()->count());
-}