Add a very basic preferences window controller with unit test. Fix the prefs ...

chrome/browser/cocoa/preferences_window_controller.mm

+// 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.
+
+#import "chrome/browser/cocoa/preferences_window_controller.h"
+
+#include "base/mac_util.h"
+#include "chrome/common/pref_service.h"
+
+PreferencesWindowController* gPrefWindowSingleton = nil;
+
+@implementation PreferencesWindowController
+
+- (id)initWithPrefs:(PrefService*)prefs {
+  DCHECK(prefs);
+  // Use initWithWindowNibPath:: instead of initWithWindowNibName: so we
+  // can override it in a unit test.
+  NSString *nibpath = [mac_util::MainAppBundle()
+                        pathForResource:@"Preferences"
+                                 ofType:@"nib"];
+  if ((self = [super initWithWindowNibPath:nibpath owner:self])) {
+    prefs_ = prefs;
+  }
+  return self;
+}
+
+- (void)awakeFromNib {
+

[TVL, 2009/04/30 17:50:31]

todo?

+}
+
+// Synchronizes the window's UI elements with the values in |prefs_|.
+- (void)syncWithPrefs {
+  // TODO(pinkerton): do it...
+}
+
+// Show the preferences window.
+- (IBAction)showPreferences:(id)sender {
+  [self syncWithPrefs];
+  [self showWindow:sender];
+}
+
+// Called when the window is being closed. Send out a notification that the
+// user is done editing preferences.
+- (void)windowWillClose:(NSNotification *)notification {
+  // TODO(pinkerton): send notification. Write unit test that makes sure
+  // we receive it.
+}
+
+@end