Install platform apps into a separate data directory

chrome/common/extensions/extension.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/common/extensions/extension.h"
 
 #include <algorithm>
 
 #include "base/base64.h"
 #include "base/basictypes.h"
@@ skipping 364 matching lines @@
 
 GURL Extension::GetBackgroundURL() const {
   if (!background_scripts_.empty()) {
     return GetResourceURL(
         extension_filenames::kGeneratedBackgroundPageFilename);
   } else {
     return background_url_;
   }
 }
 
+bool Extension::RequiresSeparateUserDataDirectory() const {
+  // Currently separate data directories are only supported on Mac OSX.
+#if defined(OS_MACOSX)
+  return is_platform_app();
+#else
+  return false;
+#endif
+}
+
 bool Extension::IsResourceWebAccessible(const std::string& relative_path)
     const {
   // For old manifest versions which do not specify web_accessible_resources
   // we always allow resource loads.
   if (manifest_version() < 2 && !HasWebAccessibleResources())
     return true;
 
   if (web_accessible_resources_.find(relative_path) !=
       web_accessible_resources_.end())
     return true;
@@ skipping 2671 matching lines @@
     already_disabled(false),
     extension(extension) {}
 
 UpdatedExtensionPermissionsInfo::UpdatedExtensionPermissionsInfo(
     const Extension* extension,
     const ExtensionPermissionSet* permissions,
     Reason reason)
     : reason(reason),
       extension(extension),
       permissions(permissions) {}