[Mac] Add Home button to Default Touch Bar

chrome/browser/ui/cocoa/browser_window_controller.mm

 // Copyright 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.
 
 #import "chrome/browser/ui/cocoa/browser_window_controller.h"
 
 #include <cmath>
 #include <numeric>
 #include <utility>
 
@@ skipping 989 matching lines @@
 }
 
 - (void)resetTabState:(WebContents*)tab {
   [toolbarController_ resetTabState:tab];
 }
 
 - (void)setStarredState:(BOOL)isStarred {
   [toolbarController_ setStarredState:isStarred];
 
   [touchBar_ setIsStarred:isStarred];
-  if ([[self window] respondsToSelector:@selector(setTouchBar:)])
-    [[self window] performSelector:@selector(setTouchBar:) withObject:nil];
+  [self invalidateTouchBar];
 }
 
 - (void)setCurrentPageIsTranslated:(BOOL)on {
   [toolbarController_ setTranslateIconLit:on];
 }
 
 - (void)onActiveTabChanged:(content::WebContents*)oldContents
                         to:(content::WebContents*)newContents {
   // No need to remove previous bubble. It will close itself.
   PermissionRequestManager* manager(nullptr);
@@ skipping 118 matching lines @@
   return [tabStripController_ tabViews];
 }
 
 - (NSView*)activeTabView {
   return [tabStripController_ activeTabView];
 }
 
 - (void)setIsLoading:(BOOL)isLoading force:(BOOL)force {
   [toolbarController_ setIsLoading:isLoading force:force];
   [touchBar_ setIsPageLoading:isLoading];
-  if ([[self window] respondsToSelector:@selector(setTouchBar:)])
-    [[self window] performSelector:@selector(setTouchBar:) withObject:nil];
+  [self invalidateTouchBar];
 }
 
 // Make the location bar the first responder, if possible.
 - (void)focusLocationBar:(BOOL)selectAll {
   [toolbarController_ focusLocationBar:selectAll];
 }
 
 - (void)focusTabContents {
   content::WebContents* const activeWebContents =
       browser_->tab_strip_model()->GetActiveWebContents();
@@ skipping 682 matching lines @@
   static_cast<BrowserWindowCocoa*>([self browserWindow])
       ->UpdateAlertState(alertState);
 }
 
 - (TabAlertState)alertState {
   return static_cast<BrowserWindowCocoa*>([self browserWindow])->alert_state();
 }
 
 - (BrowserWindowTouchBar*)browserWindowTouchBar {
   if (!touchBar_) {
-    touchBar_.reset(
-        [[BrowserWindowTouchBar alloc] initWithBrowser:browser_.get()]);
+    touchBar_.reset([[BrowserWindowTouchBar alloc]
+                initWithBrowser:browser_.get()
+        browserWindowController:self]);
   }
 
   return touchBar_.get();
 }
 
+- (void)invalidateTouchBar {
+  if ([[self window] respondsToSelector:@selector(setTouchBar:)])
+    [[self window] performSelector:@selector(setTouchBar:) withObject:nil];
+}
+
 @end  // @implementation BrowserWindowController
 
 @implementation BrowserWindowController(Fullscreen)
 
 - (void)enterBrowserFullscreen {
   [self enterAppKitFullscreen];
 }
 
 - (void)updateUIForTabFullscreen:
     (ExclusiveAccessContext::TabFullscreenState)state {
@@ skipping 151 matching lines @@
 
 - (NSRect)savedRegularWindowFrame {
   return savedRegularWindowFrame_;
 }
 
 - (BOOL)isFullscreenTransitionInProgress {
   return enteringAppKitFullscreen_ || exitingAppKitFullscreen_;
 }
 
 @end  // @implementation BrowserWindowController(WindowType)