POSIX: Make sure files in plugin directories are regular files.

webkit/glue/plugins/plugin_list_posix.cc

-// Copyright (c) 2009 The Chromium Authors. All rights reserved.
+// Copyright (c) 2010 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 "webkit/glue/plugins/plugin_list.h"
 
 #include "base/command_line.h"
 #include "base/file_util.h"
 #include "base/path_service.h"
 #include "base/string_util.h"
 #include "build/build_config.h"
@@ skipping 75 matching lines @@
   if (moz_plugin_path) {
     std::vector<std::string> paths;
     SplitString(moz_plugin_path, ':', &paths);
     for (size_t i = 0; i < paths.size(); ++i)
       plugin_dirs->push_back(FilePath(paths[i]));
   }
 
   // 2) NS_USER_PLUGINS_DIR: ~/.mozilla/plugins.
   // This is a de-facto standard, so even though we're not Mozilla, let's
   // look in there too.
-  const char* home = getenv("HOME");
-  if (home)
-    plugin_dirs->push_back(FilePath(home).Append(".mozilla/plugins"));
+  FilePath home = file_util::GetHomeDir();
+  if (!home.empty())
+    plugin_dirs->push_back(home.Append(".mozilla/plugins"));
 
   // 3) NS_SYSTEM_PLUGINS_DIR:
   // This varies across different browsers and versions, so check 'em all.
   plugin_dirs->push_back(FilePath("/usr/lib/browser-plugins"));
   plugin_dirs->push_back(FilePath("/usr/lib/mozilla/plugins"));
   plugin_dirs->push_back(FilePath("/usr/lib/firefox/plugins"));
   plugin_dirs->push_back(FilePath("/usr/lib/xulrunner-addons/plugins"));
 
 #if defined(ARCH_CPU_64_BITS)
   // On my Ubuntu system, /usr/lib64 is a symlink to /usr/lib.
@@ skipping 96 matching lines @@
     }
   }
 
   // TODO(evanm): prefer the newest version of flash, etc. here?
 
   PLUG_LOG << "Using " << info.path.value();
 
   return true;
 }
 
-} // namespace NPAPI
+}  // namespace NPAPI