Add a gyp flag to enable dcheck by default in release without

chrome/browser/browser_main_unittest.cc

 // Copyright (c) 2011 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/browser/browser_main.h"
 
 #include <string>
 #include <vector>
 #include "base/command_line.h"
 #include "chrome/common/chrome_switches.h"
@@ skipping 45 matching lines @@
 }
 
 TEST_F(BrowserMainTest, WarmConnectionFieldTrial_Invalid) {
   command_line_.AppendSwitchASCII(switches::kSocketReusePolicy, "100");
 
   scoped_ptr<MainFunctionParams> params(
       new MainFunctionParams(command_line_, *sandbox_init_wrapper_, NULL));
   scoped_ptr<BrowserMainParts> bw(BrowserMainParts::CreateBrowserMainParts(
       *params));
 
+#if defined(NDEBUG) && defined(DCHECK_ALWAYS_ON)
+  EXPECT_DEATH(bw->WarmConnectionFieldTrial(),
+               "Not a valid socket reuse policy group");
+#else
   EXPECT_DEBUG_DEATH(bw->WarmConnectionFieldTrial(),
                      "Not a valid socket reuse policy group");
+#endif
 }