[Mac] Fullscreen Touch Bar Support

chrome/browser/ui/cocoa/browser_window_controller_private.mm

Index: chrome/browser/ui/cocoa/browser_window_controller_private.mm
diff --git a/chrome/browser/ui/cocoa/browser_window_controller_private.mm b/chrome/browser/ui/cocoa/browser_window_controller_private.mm
index 4936bae19d9419395420a7237dccca59b4383d14..ce0e0446c3d3561feebd38a67b99b96643b5d09e 100644
--- a/chrome/browser/ui/cocoa/browser_window_controller_private.mm
+++ b/chrome/browser/ui/cocoa/browser_window_controller_private.mm
@@ -669,6 +669,8 @@ willPositionSheet:(NSWindow*)sheet
   [[tabStripController_ activeTabContentsController]
       updateFullscreenWidgetFrame];
 
+  [self invalidateTouchBar];
+
   [self showFullscreenExitBubbleIfNecessary];
   browser_->WindowFullscreenStateChanged();
 
@@ -727,6 +729,8 @@ willPositionSheet:(NSWindow*)sheet
 
   [self resetCustomAppKitFullscreenVariables];
 
+  [self invalidateTouchBar];
+
   // Ensures that the permission bubble shows up properly at the front.
   PermissionRequestManager* manager = [self permissionRequestManager];
   if (manager && manager->IsBubbleVisible()) {