Fix two bugs in the extension actions toolbar

chrome/browser/ui/views/toolbar/browser_actions_container.h

 // Copyright 2013 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_VIEWS_TOOLBAR_BROWSER_ACTIONS_CONTAINER_H_
 #define CHROME_BROWSER_UI_VIEWS_TOOLBAR_BROWSER_ACTIONS_CONTAINER_H_
 
 #include "base/observer_list.h"
 #include "chrome/browser/extensions/extension_keybinding_registry.h"
 #include "chrome/browser/extensions/extension_toolbar_model.h"
@@ skipping 277 matching lines @@
       bool grant_active_tab) OVERRIDE;
   virtual void ToolbarVisibleCountChanged() OVERRIDE;
   virtual void ToolbarHighlightModeChanged(bool is_highlighting) OVERRIDE;
   virtual Browser* GetBrowser() OVERRIDE;
 
   void LoadImages();
 
   // Called when a browser action's visibility may have changed.
   void OnBrowserActionVisibilityChanged();
 
-  // Sets the initial container width.
-  void SetContainerWidth();
+  // Returns the preferred width of the container in order to show all icons
+  // that should be visible and, optionally, the chevron.
+  int GetPreferredWidth();
+
+  // Sets the chevron to be visible or not based on whether all browser actions
+  // are displayed.
+  void SetChevronVisibility();
 
   // Closes the overflow menu if open.
   void CloseOverflowMenu();
 
   // Cancels the timer for showing the drop down menu.
   void StopShowFolderDropMenuTimer();
 
   // Show the drop down folder after a slight delay.
   void StartShowFolderDropMenuTimer();
 
@@ skipping 102 matching lines @@
 
   // Handles delayed showing of the overflow menu when hovering.
   base::WeakPtrFactory<BrowserActionsContainer> show_menu_task_factory_;
 
   ObserverList<BrowserActionsContainerObserver> observers_;
 
   DISALLOW_COPY_AND_ASSIGN(BrowserActionsContainer);
 };
 
 #endif  // CHROME_BROWSER_UI_VIEWS_TOOLBAR_BROWSER_ACTIONS_CONTAINER_H_