[Mac] Adds grippys to the left side of the Browser Actions container to resiz...

chrome/browser/cocoa/extensions/browser_actions_controller.h

 // Copyright (c) 2010 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_COCOA_EXTENSIONS_BROWSER_ACTIONS_CONTROLLER_H_
 #define CHROME_BROWSER_COCOA_EXTENSIONS_BROWSER_ACTIONS_CONTROLLER_H_
 
 #import <Cocoa/Cocoa.h>
 
 #import "base/scoped_nsobject.h"
@@ skipping 31 matching lines @@
 
   // A dictionary of Extension ID -> BrowserActionButton pairs representing the
   // buttons present in the container view. The ID is a string unique to each
   // extension.
   scoped_nsobject<NSMutableDictionary> buttons_;
 
   // The order of the BrowserActionButton objects within the dictionary.
   scoped_nsobject<NSMutableArray> buttonOrder_;
 }
 
+@property(readonly, nonatomic) BrowserActionsContainerView* containerView;
+
 // Initializes the controller given the current browser and container view that
 // will hold the browser action buttons.
 - (id)initWithBrowser:(Browser*)browser
         containerView:(BrowserActionsContainerView*)container;
 
 // Creates and appends any existing browser action buttons present within the
 // extensions service to the toolbar.
 - (void)createButtons;
 
+// Returns the ideal (not current) width to fit all visible extensions and other
+// UI elements in the container nicely.
+- (CGFloat)idealContainerWidth;
+
 // Update the display of all buttons.
 - (void)update;
 
 // Returns the current number of browser action buttons within the container,
 // whether or not they are displayed.
-- (int)buttonCount;
+- (NSUInteger)buttonCount;
 
 // Returns the current number of browser action buttons displayed in the
 // container.
-- (int)visibleButtonCount;
+- (NSUInteger)visibleButtonCount;
 
 // Executes the action designated by the extension.
 - (void)browserActionClicked:(BrowserActionButton*)sender;
 
 // Returns the NSView for the action button associated with an extension.
 - (NSView*)browserActionViewForExtension:(Extension*)extension;
 
 @end  // @interface BrowserActionsController
 
 @interface BrowserActionsController(TestingAPI)
 - (NSButton*)buttonWithIndex:(int)index;
 @end
 
 #endif  // CHROME_BROWSER_COCOA_EXTENSIONS_BROWSER_ACTIONS_CONTROLLER_H_