[Mac] Add Home button to Default Touch Bar

chrome/browser/ui/cocoa/browser_window_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_BROWSER_WINDOW_CONTROLLER_H_
 #define CHROME_BROWSER_UI_COCOA_BROWSER_WINDOW_CONTROLLER_H_
 
 // A class acting as the Objective-C controller for the Browser
 // object. Handles interactions between Cocoa and the cross-platform
 // code. Each window has a single toolbar and, by virtue of being a
@@ skipping 372 matching lines @@
 // See TabUtils::TabAlertState for a list of all possible alert states.
 - (void)setAlertState:(TabAlertState)alertState;
 
 // Returns current alert state, determined by the alert state of tabs, set by
 // UpdateAlertState.
 - (TabAlertState)alertState;
 
 // Returns the BrowserWindowTouchBar object associated with the window.
 - (BrowserWindowTouchBar*)browserWindowTouchBar;
 
+// Invalidates the browser's touch bar.
+- (void)invalidateTouchBar;
+
 @end  // @interface BrowserWindowController
 
 
 // Methods having to do with the window type (normal/popup/app, and whether the
 // window has various features.
 @interface BrowserWindowController(WindowType)
 
 // Determines whether this controller's window supports a given feature (i.e.,
 // whether a given feature is or can be shown in the window).
 // TODO(viettrungluu): |feature| is really should be |Browser::Feature|, but I
@@ skipping 208 matching lines @@
 // Returns the fullscreen toolbar controller.
 - (FullscreenToolbarController*)fullscreenToolbarController;
 
 // Sets the fullscreen toolbar controller.
 - (void)setFullscreenToolbarController:(FullscreenToolbarController*)controller;
 
 @end  // @interface BrowserWindowController (TestingAPI)
 
 
 #endif  // CHROME_BROWSER_UI_COCOA_BROWSER_WINDOW_CONTROLLER_H_