[Panel refactor] use browserless Panels by default in Dev/Canary

chrome/browser/ui/panels/panel_manager.h

 // Copyright (c) 2012 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.
 
 #ifndef CHROME_BROWSER_UI_PANELS_PANEL_MANAGER_H_
 #define CHROME_BROWSER_UI_PANELS_PANEL_MANAGER_H_
 
 #include <vector>
 #include "base/basictypes.h"
 #include "base/lazy_instance.h"
@@ skipping 16 matching lines @@
 // This class manages a set of panels.
 class PanelManager : public DisplaySettingsProvider::DisplayAreaObserver,
                      public DisplaySettingsProvider::FullScreenObserver {
  public:
   // Returns a single instance.
   static PanelManager* GetInstance();
 
   // Returns true if panels should be used for the extension.
   static bool ShouldUsePanels(const std::string& extension_id);
 
+  // Returns true if using browserless panels. False if using old panels.
+  // TODO(jennb): Delete after refactor.
+  static bool UseBrowserlessPanels();
+
   // Creates a panel and returns it. The panel might be queued for display
   // later.
   // |app_name| is the default title for Panels when the page content does not
   // provide a title. For extensions, this is usually the application name
   // generated from the extension id.
   // |requested_size| is the desired size for the panel, but actual
   // size may differ after panel layout.
   Panel* CreatePanel(const std::string& app_name,
                      Profile* profile,
                      const GURL& url,
@@ skipping 153 matching lines @@
 
   // Whether or not bounds will be updated when the preferred content size is
   // changed. The testing code could set this flag to false so that other tests
   // will not be affected.
   bool auto_sizing_enabled_;
 
   DISALLOW_COPY_AND_ASSIGN(PanelManager);
 };
 
 #endif  // CHROME_BROWSER_UI_PANELS_PANEL_MANAGER_H_