Install platform apps into a separate data directory

chrome/browser/extensions/extension_service.h

Index: chrome/browser/extensions/extension_service.h
diff --git a/chrome/browser/extensions/extension_service.h b/chrome/browser/extensions/extension_service.h
index 112bd08a083aa3cc0be866837df0745fe9fc4c81..86b61745c46ddebd1b75471a88d90352b2928037 100644
--- a/chrome/browser/extensions/extension_service.h
+++ b/chrome/browser/extensions/extension_service.h
@@ -158,6 +158,10 @@ class ExtensionService
   // settings are stored.
   static const char* kSyncExtensionSettingsDirectoryName;
 
+  // Returns true if platform apps should be run in their own user data
+  // directory.
+  static bool PlatformAppRequiresSeparateDataDirectory();
+
   // Determine if a given extension download should be treated as if it came
   // from the gallery. Note that this is requires *both* that the download_url
   // match and that the download was referred from a gallery page.
@@ -694,6 +698,22 @@ class ExtensionService
 
   NaClModuleInfoList::iterator FindNaClModule(const GURL& url);
 
+  // Sets up preferences for a newly installed extension. |page_ordinal| is
+  // order the extension should show up in the NTP. |initial_enable| is true
+  // if the extension should be enabled.
+  void SetupExtensionPrefs(ExtensionPrefs* prefs,
+                           const Extension* extension,
+                           bool from_webstore,
+                           const StringOrdinal& page_ordinal,
+                           bool initial_enable);
+
+  // Sets up preferences for a newly installed extension in a new data
+  // directory. |page_ordinal| is order the extension should show up in the NTP.
+  void SetupExtensionPrefsInSeparateDataDirectory(
+      const Extension* extension,
+      bool from_webstore,
+      const StringOrdinal& page_ordinal);
+
   // The profile this ExtensionService is part of.
   Profile* profile_;