Don't use PathService for the location of nacl_helper and nacl_helper_bootstrap

chrome/common/nacl_paths.cc

+// Copyright (c) 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 "chrome/common/nacl_paths.h"
+
+#include "base/file_util.h"
+#include "base/path_service.h"
+
+namespace {
+
+#if defined(OS_POSIX) && !defined(OS_MACOSX)
+// File name of the nacl_helper and nacl_helper_bootstrap, Linux only.
+const base::FilePath::CharType kInternalNaClHelperFileName[] =
+    FILE_PATH_LITERAL("nacl_helper");
+const base::FilePath::CharType kInternalNaClHelperBootstrapFileName[] =
+    FILE_PATH_LITERAL("nacl_helper_bootstrap");
+#endif
+
+}  // namespace
+
+namespace nacl {
+
+bool PathProvider(int key, base::FilePath* result) {
+  base::FilePath cur;
+  switch (key) {
+#if defined(OS_LINUX)
+    case FILE_NACL_HELPER:
+      if (!PathService::Get(base::DIR_MODULE, &cur))
+        return false;
+      cur = cur.Append(kInternalNaClHelperFileName);
+      break;
+    case FILE_NACL_HELPER_BOOTSTRAP:
+      if (!PathService::Get(base::DIR_MODULE, &cur))
+        return false;
+      cur = cur.Append(kInternalNaClHelperBootstrapFileName);
+      break;
+#endif
+    default:
+      return false;
+  }
+
+  *result = cur;
+  return true;
+}
+
+// This cannot be done as a static initializer sadly since Visual Studio will
+// eliminate this object file if there is no direct entry point into it.
+void RegisterPathProvider() {
+  PathService::RegisterProvider(PathProvider, PATH_START, PATH_END);
+}
+
+}  // namespace nacl