DevTools: request app banner from DevTools without #enable-add-to-shelf flag while emulating.

chrome/browser/ui/browser.cc

 // 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.
 
 #include "chrome/browser/ui/browser.h"
 
 #include <stddef.h>
 
 #include <algorithm>
 #include <string>
@@ skipping 1427 matching lines @@
 
   Browser* browser = chrome::FindBrowserWithWebContents(
       WebContents::FromRenderFrameHost(frame));
   BubbleReference bubble_reference =
       browser->GetBubbleManager()->ShowBubble(std::move(bubble_controller));
   bubble_controller_ptr->set_bubble_reference(bubble_reference);
 
   return std::move(bluetooth_chooser_desktop);
 }
 
+void Browser::RequestAppBannerFromDevTools(content::WebContents* web_contents) {
+  banners::AppBannerManagerDesktop::CreateForWebContents(web_contents);
+  RequestAppBanner(web_contents);
+}
+
 bool Browser::RequestAppBanner(content::WebContents* web_contents) {
   banners::AppBannerManagerDesktop* manager =
       banners::AppBannerManagerDesktop::FromWebContents(web_contents);
   if (manager) {
     manager->RequestAppBanner(web_contents->GetMainFrame(),
                               web_contents->GetLastCommittedURL(), true);
     return true;
   }
 
   web_contents->GetMainFrame()->AddMessageToConsole(
@@ skipping 1282 matching lines @@
   if (contents && !allow_js_access) {
     contents->web_contents()->GetController().LoadURL(
         target_url,
         content::Referrer(),
         ui::PAGE_TRANSITION_LINK,
         std::string());  // No extra headers.
   }
 
   return contents != NULL;
 }