Update PanelManager's display settings when they change (OSX).

chrome/browser/app_controller_mac.mm

 // Copyright (c) 2011 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/app_controller_mac.h"
 
 #include "base/auto_reset.h"
 #include "base/command_line.h"
 #include "base/file_path.h"
 #include "base/mac/foundation_util.h"
@@ skipping 33 matching lines @@
 #import "chrome/browser/ui/cocoa/bookmarks/bookmark_menu_bridge.h"
 #import "chrome/browser/ui/cocoa/browser_window_cocoa.h"
 #import "chrome/browser/ui/cocoa/browser_window_controller.h"
 #import "chrome/browser/ui/cocoa/confirm_quit_panel_controller.h"
 #import "chrome/browser/ui/cocoa/encoding_menu_controller_delegate_mac.h"
 #import "chrome/browser/ui/cocoa/history_menu_bridge.h"
 #import "chrome/browser/ui/cocoa/profile_menu_controller.h"
 #import "chrome/browser/ui/cocoa/tabs/tab_strip_controller.h"
 #import "chrome/browser/ui/cocoa/tabs/tab_window_controller.h"
 #include "chrome/browser/ui/cocoa/task_manager_mac.h"
+#include "chrome/browser/ui/panels/panel_manager.h"
 #include "chrome/common/chrome_notification_types.h"
 #include "chrome/common/chrome_paths_internal.h"
 #include "chrome/common/chrome_switches.h"
 #include "chrome/common/cloud_print/cloud_print_class_mac.h"
 #include "chrome/common/mac/app_mode_common.h"
 #include "chrome/common/pref_names.h"
 #include "chrome/common/service_messages.h"
 #include "chrome/common/url_constants.h"
 #include "content/browser/download/download_manager.h"
 #include "content/browser/tab_contents/tab_contents.h"
@@ skipping 1179 matching lines @@
 }
 
 - (void)clearStartupUrls {
   startupUrls_.clear();
 }
 
 - (BookmarkMenuBridge*)bookmarkMenuBridge {
   return bookmarkMenuBridge_.get();
 }
 
+- (void)applicationDidChangeScreenParameters:(NSNotification *)notification {
+  // During this callback the working area is not always already updated. Defer.
+  [self performSelector:@selector(delayedPanelManagerScreenParametersUpdate)
+             withObject:nil
+             afterDelay:0];
+}
+
+- (void)delayedPanelManagerScreenParametersUpdate {
+  PanelManager::GetInstance()->OnDisplayChanged();
+}
+
 @end  // @implementation AppController
 
 //---------------------------------------------------------------------------
 
 namespace browser {
 
 void ShowInstantConfirmDialog(gfx::NativeWindow parent, Profile* profile) {
   if (Browser* browser = ActivateBrowser(profile)) {
     browser->OpenInstantConfirmDialog();
   } else {
     Browser::OpenInstantConfirmDialogWindow(profile);
   }
 }
 
 }  // namespace browser
 
 namespace app_controller_mac {
 
 bool IsOpeningNewWindow() {
   return g_is_opening_new_window;
 }
 
 }  // namespace app_controller_mac