Extend PathService::Get to be able to return the X86 program files path.

base/base_paths_win.cc

Index: base/base_paths_win.cc
diff --git a/base/base_paths_win.cc b/base/base_paths_win.cc
index 25271e44d007c1bd27a8dea3b7f116587b383936..b29a99155e30b723f967cad7c102b3e84ca59603 100644
--- a/base/base_paths_win.cc
+++ b/base/base_paths_win.cc
@@ -1,4 +1,4 @@
-// Copyright (c) 2010 The Chromium Authors. All rights reserved.
+// 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.
 
@@ -49,6 +49,16 @@ bool PathProviderWin(int key, FilePath* result) {
       GetSystemDirectory(system_buffer, MAX_PATH);
       cur = FilePath(system_buffer);
       break;
+    case base::DIR_PROGRAM_FILESX86:
+      if (base::win::OSInfo::GetInstance()->architecture() !=
+          base::win::OSInfo::X86_ARCHITECTURE) {
+        if (FAILED(SHGetFolderPath(NULL, CSIDL_PROGRAM_FILESX86, NULL,
+                                   SHGFP_TYPE_CURRENT, system_buffer)))
+          return false;
+        cur = FilePath(system_buffer);
+        break;
+      }
+      // Fall through to base::DIR_PROGRAM_FILES if we're on an X86 machine.
     case base::DIR_PROGRAM_FILES:
       if (FAILED(SHGetFolderPath(NULL, CSIDL_PROGRAM_FILES, NULL,
                                  SHGFP_TYPE_CURRENT, system_buffer)))