Add scoped path overrides for system directories for ExtensionBrowserTests.

chrome/browser/extensions/extension_browsertest.cc

 // 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/browser/extensions/extension_browsertest.h"
 
 #include <vector>
 
 #include "base/command_line.h"
 #include "base/files/file_path.h"
@@ skipping 51 matching lines @@
       installed_(false),
 #if defined(OS_CHROMEOS)
       set_chromeos_user_(true),
 #endif
       // Default channel is STABLE but override with UNKNOWN so that unlaunched
       // or incomplete APIs can write tests.
       current_channel_(chrome::VersionInfo::CHANNEL_UNKNOWN),
       override_prompt_for_external_extensions_(
           FeatureSwitch::prompt_for_external_extensions(),
           false),
+#if defined(OS_WIN)
+      user_desktop_override_(base::DIR_USER_DESKTOP),
+      common_desktop_override_(base::DIR_COMMON_DESKTOP),
+      user_quick_launch_override_(base::DIR_USER_QUICK_LAUNCH),
+      start_menu_override_(base::DIR_START_MENU),
+      common_start_menu_override_(base::DIR_COMMON_START_MENU),
+#endif
       profile_(NULL) {
   EXPECT_TRUE(temp_dir_.CreateUniqueTempDir());
 }
 
 ExtensionBrowserTest::~ExtensionBrowserTest() {
 }
 
 Profile* ExtensionBrowserTest::profile() {
   if (!profile_) {
     if (browser())
@@ skipping 563 matching lines @@
   return extensions::browsertest_util::ExecuteScriptInBackgroundPage(
       profile(), extension_id, script);
 }
 
 bool ExtensionBrowserTest::ExecuteScriptInBackgroundPageNoWait(
     const std::string& extension_id,
     const std::string& script) {
   return extensions::browsertest_util::ExecuteScriptInBackgroundPageNoWait(
       profile(), extension_id, script);
 }