Allow app banners to be triggered by increases in site engagement.

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 1329 matching lines @@
   BubbleReference bubble_reference = browser->GetBubbleManager()->ShowBubble(
       std::move(chooser_bubble_delegate));
 
   return std::move(bluetooth_chooser_desktop);
 }
 
 void Browser::RequestAppBannerFromDevTools(content::WebContents* web_contents) {
   banners::AppBannerManagerEmulation::CreateForWebContents(web_contents);
   banners::AppBannerManagerEmulation* manager =
       banners::AppBannerManagerEmulation::FromWebContents(web_contents);
-  manager->RequestAppBanner(web_contents->GetMainFrame(),
-                            web_contents->GetLastCommittedURL(), true);
+  manager->RequestAppBanner(web_contents->GetLastCommittedURL(), true);
 }
 
 bool Browser::IsMouseLocked() const {
   return exclusive_access_manager_->mouse_lock_controller()->IsMouseLocked();
 }
 
 void Browser::OnWindowDidShow() {
   if (window_has_shown_)
     return;
   window_has_shown_ = true;
@@ skipping 1236 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;
 }