[Mac] Implement LocationBarViewMac::UpdateLocationBarVisibility()

chrome/browser/ui/cocoa/toolbar/toolbar_controller.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_COCOA_TOOLBAR_TOOLBAR_CONTROLLER_H_
 #define CHROME_BROWSER_UI_COCOA_TOOLBAR_TOOLBAR_CONTROLLER_H_
 
 #import <Cocoa/Cocoa.h>
 
 #include "base/mac/scoped_nsobject.h"
@@ skipping 149 matching lines @@
 // Returns the desired toolbar height for the given compression factor.
 - (CGFloat)desiredHeightForCompression:(CGFloat)compressByHeight;
 
 // Set the opacity of the divider (the line at the bottom) *if* we have a
 // |ToolbarView| (0 means don't show it); no-op otherwise.
 - (void)setDividerOpacity:(CGFloat)opacity;
 
 // Create and add the Browser Action buttons to the toolbar view.
 - (void)createBrowserActionButtons;
 
+// Update whether the toolbar is visible or not, with an optional animation.
+- (void)updateVisibility:(BOOL)visible withAnimation:(BOOL)animate;
+
 // Return the BrowserActionsController for this toolbar.
 - (BrowserActionsController*)browserActionsController;
 
 // Returns the wrench button.
 - (NSButton*)wrenchButton;
 
 // Returns the wrench menu controller.
 - (WrenchMenuController*)wrenchMenuController;
 
 @end
@@ skipping 13 matching lines @@
 @interface ToolbarController(PrivateTestMethods)
 // Returns an array of views in the order of the outlets above.
 - (NSArray*)toolbarViews;
 - (void)showOptionalHomeButton;
 - (void)installWrenchMenu;
 // Return a hover button for the current event.
 - (NSButton*)hoverButtonForEvent:(NSEvent*)theEvent;
 @end
 
 #endif  // CHROME_BROWSER_UI_COCOA_TOOLBAR_TOOLBAR_CONTROLLER_H_