[Mac] Polish the search engine manager

chrome/browser/cocoa/nswindow_local_state.h

Index: chrome/browser/cocoa/nswindow_local_state.h
diff --git a/chrome/browser/cocoa/nswindow_local_state.h b/chrome/browser/cocoa/nswindow_local_state.h
new file mode 100644
index 0000000000000000000000000000000000000000..3a3394ca72377082f6d2c1b8eca1436b93aba2a3
--- /dev/null
+++ b/chrome/browser/cocoa/nswindow_local_state.h
@@ -0,0 +1,21 @@
+// Copyright (c) 2009 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.
+
+class PrefService;
+@class NSWindow;
+
+// These additions to NSWindow assist in saving and restoring a window's
+// position to Chromium's local state preferences.
+
+@interface NSWindow (LocalStateAdditions)
+
+// Saves the window's origin into the given PrefService. Caller is responsible
+// for making sure |prefs| is not NULL.
+- (void)saveWindowPositionToPrefs:(PrefService*)prefs 
+                         withPath:(const wchar_t*)path;
+
+- (void)restoreWindowPositionFromPrefs:(PrefService*)prefs
+                              withPath:(const wchar_t*)path;
+
+@end