diff -r 000000000000 -r 6474c204b198 toolkit/xre/nsXREDirProvider.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/toolkit/xre/nsXREDirProvider.h	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,145 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef _nsXREDirProvider_h__
+#define _nsXREDirProvider_h__
+
+#include "nsIDirectoryService.h"
+#include "nsIProfileMigrator.h"
+#include "nsIFile.h"
+
+#include "nsCOMPtr.h"
+#include "nsCOMArray.h"
+#include "mozilla/Attributes.h"
+
+class nsXREDirProvider MOZ_FINAL : public nsIDirectoryServiceProvider2,
+                                   public nsIProfileStartup
+{
+public:
+  // we use a custom isupports implementation (no refcount)
+  NS_IMETHOD QueryInterface(REFNSIID aIID, void** aInstancePtr);
+  NS_IMETHOD_(MozExternalRefCountType) AddRef(void);
+  NS_IMETHOD_(MozExternalRefCountType) Release(void);
+
+  NS_DECL_NSIDIRECTORYSERVICEPROVIDER
+  NS_DECL_NSIDIRECTORYSERVICEPROVIDER2
+  NS_DECL_NSIPROFILESTARTUP
+
+  nsXREDirProvider();
+
+  // if aXULAppDir is null, use gArgv[0]
+  nsresult Initialize(nsIFile *aXULAppDir,
+                      nsIFile *aGREDir,
+                      nsIDirectoryServiceProvider* aAppProvider = nullptr);
+  ~nsXREDirProvider();
+
+  static nsXREDirProvider* GetSingleton();
+
+  nsresult GetUserProfilesRootDir(nsIFile** aResult,
+                                  const nsACString* aProfileName,
+                                  const nsACString* aAppName,
+                                  const nsACString* aVendorName);
+  nsresult GetUserProfilesLocalDir(nsIFile** aResult,
+                                   const nsACString* aProfileName,
+                                   const nsACString* aAppName,
+                                   const nsACString* aVendorName);
+
+  // We only set the profile dir, we don't ensure that it exists;
+  // that is the responsibility of the toolkit profile service.
+  // We also don't fire profile-changed notifications... that is
+  // the responsibility of the apprunner.
+  nsresult SetProfile(nsIFile* aProfileDir, nsIFile* aProfileLocalDir);
+
+  void DoShutdown();
+
+  nsresult GetProfileDefaultsDir(nsIFile* *aResult);
+
+  nsresult GetUserAppDataDirectory(nsIFile* *aFile) {
+    return GetUserDataDirectory(aFile, false, nullptr, nullptr, nullptr);
+  }
+  nsresult GetUserLocalDataDirectory(nsIFile* *aFile) {
+    return GetUserDataDirectory(aFile, true, nullptr, nullptr, nullptr);
+  }
+
+  // By default GetUserDataDirectory gets profile path from gAppData,
+  // but that can be overridden by using aProfileName/aAppName/aVendorName.
+  nsresult GetUserDataDirectory(nsIFile** aFile, bool aLocal,
+                                       const nsACString* aProfileName,
+                                       const nsACString* aAppName,
+                                       const nsACString* aVendorName);
+
+  /* make sure you clone it, if you need to do stuff to it */
+  nsIFile* GetGREDir() { return mGREDir; }
+  nsIFile* GetAppDir() {
+    if (mXULAppDir)
+      return mXULAppDir;
+    return mGREDir;
+  }
+
+  /**
+   * Get the directory under which update directory is created.
+   * This method may be called before XPCOM is started. aResult
+   * is a clone, it may be modified.
+   */
+  nsresult GetUpdateRootDir(nsIFile* *aResult);
+
+  /**
+   * Get the profile startup directory as determined by this class or by
+   * mAppProvider. This method may be called before XPCOM is started. aResult
+   * is a clone, it may be modified.
+   */
+  nsresult GetProfileStartupDir(nsIFile* *aResult);
+
+  /**
+   * Get the profile directory as determined by this class or by an
+   * embedder-provided XPCOM directory provider. Only call this method
+   * when XPCOM is initialized! aResult is a clone, it may be modified.
+   */
+  nsresult GetProfileDir(nsIFile* *aResult);
+
+protected:
+  nsresult GetFilesInternal(const char* aProperty, nsISimpleEnumerator** aResult);
+  nsresult GetUserDataDirectoryHome(nsIFile* *aFile, bool aLocal);
+  nsresult GetSysUserExtensionsDirectory(nsIFile* *aFile);
+#if defined(XP_UNIX) || defined(XP_MACOSX)
+  static nsresult GetSystemExtensionsDirectory(nsIFile** aFile);
+#endif
+  static nsresult EnsureDirectoryExists(nsIFile* aDirectory);
+  void EnsureProfileFileExists(nsIFile* aFile);
+
+  // Determine the profile path within the UAppData directory. This is different
+  // on every major platform.
+  static nsresult AppendProfilePath(nsIFile* aFile,
+                                    const nsACString* aProfileName,
+                                    const nsACString* aAppName,
+                                    const nsACString* aVendorName,
+                                    bool aLocal);
+
+  static nsresult AppendSysUserExtensionPath(nsIFile* aFile);
+
+  // Internal helper that splits a path into components using the '/' and '\\'
+  // delimiters.
+  static inline nsresult AppendProfileString(nsIFile* aFile, const char* aPath);
+
+  // Calculate and register extension and theme bundle directories.
+  void LoadExtensionBundleDirectories();
+
+  // Calculate and register app-bundled extension directories.
+  void LoadAppBundleDirs();
+
+  void Append(nsIFile* aDirectory);
+
+  nsCOMPtr<nsIDirectoryServiceProvider> mAppProvider;
+  nsCOMPtr<nsIFile>      mGREDir;
+  nsCOMPtr<nsIFile>      mXULAppDir;
+  nsCOMPtr<nsIFile>      mProfileDir;
+  nsCOMPtr<nsIFile>      mProfileLocalDir;
+  bool                   mProfileNotified;
+  nsCOMArray<nsIFile>    mAppBundleDirectories;
+  nsCOMArray<nsIFile>    mExtensionDirectories;
+  nsCOMArray<nsIFile>    mThemeDirectories;
+};
+
+#endif