Modify fileAtPath stat to track if the call was redirected by chrome_elf.

chrome_elf/chrome_redirects_main.cc

Index: chrome_elf/chrome_redirects_main.cc
diff --git a/chrome_elf/blacklist/test/blacklist_test_dll_1.cc b/chrome_elf/chrome_redirects_main.cc
similarity index 56%
copy from chrome_elf/blacklist/test/blacklist_test_dll_1.cc
copy to chrome_elf/chrome_redirects_main.cc
index a4e414d5210db7babf43c67996dbeec7e3944480..8d1b871d40b770e75731cd49655885b5d8f30fbc 100644
--- a/chrome_elf/blacklist/test/blacklist_test_dll_1.cc
+++ b/chrome_elf/chrome_redirects_main.cc
@@ -1,9 +1,14 @@
-// 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 <windows.h>
-
-BOOL APIENTRY DllMain(HMODULE module, DWORD reason, LPVOID reserved) {
-  return TRUE;
-}
+// Copyright 2014 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 <windows.h>
+
+#include "chrome_elf/ntdll_cache.h"
+
+BOOL APIENTRY DllMain(HMODULE module, DWORD reason, LPVOID reserved) {
+  if (reason == DLL_PROCESS_ATTACH)
+    InitCache();
+
+  return TRUE;
+}