Revert "Fix Toolbar content for Focus Mode Window"

This reverts commit 742a867b.

Reason for revert: <INSERT REASONING HERE>

Original change's description:
> Fix Toolbar content for Focus Mode Window
> 
> Toolbar is not showing correct content for Focus Mode Window when the
> site is not secure. This cl resolve this issue by processing an UI
> update after tab inserted to browser.
> 
> Change-Id: I35c4baf20ba6c90c85a03f471c51356853e8f165
> 
> Bug: 961820
> Change-Id: I35c4baf20ba6c90c85a03f471c51356853e8f165
> Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1603768
> Commit-Queue: Yining Wang <yiningwang@google.com>
> Reviewed-by: Dana Fried <dfried@chromium.org>
> Reviewed-by: Avi Drissman <avi@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#658820}

TBR=avi@chromium.org,dfried@chromium.org,yiningwang@google.com

# Not skipping CQ checks because original CL landed > 1 day ago.

Bug: 964900
Change-Id: I92344a883c4497830268b9e7dce2ebf605075560
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1656031
Commit-Queue: Yining Wang <yiningwang@google.com>
Commit-Queue: Dana Fried <dfried@chromium.org>
Reviewed-by: Dana Fried <dfried@chromium.org>
Cr-Commit-Position: refs/heads/master@{#668493}

chrome/browser/ui/browser.cc

@@ -2100,7 +2100,6 @@ void Browser::OnTabInsertedAt(WebContents* contents, int index) {
     if (index < new_active_index)
       session_service->SetSelectedTabInWindow(session_id(), new_active_index);
   }
-  contents->NotifyNavigationStateChanged(content::INVALIDATE_TYPE_TAB);
 }
 
 void Browser::OnTabClosing(WebContents* contents) {

chrome/browser/ui/manifest_web_app_browser_controller.cc

@@ -93,4 +93,5 @@ void ManifestWebAppBrowserController::OnTabInserted(
   if (app_launch_url_.is_empty())
     app_launch_url_ = contents->GetURL();
   AppBrowserController::OnTabInserted(contents);
+  UpdateToolbarVisibility(false);
 }