Change WebContentsDelegate::RunFileChooser to be frame based.

chrome/browser/ui/apps/chrome_app_delegate.cc

 // Copyright 2014 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/apps/chrome_app_delegate.h"
 
 #include <memory>
 #include <utility>
 
 #include "base/macros.h"
@@ skipping 238 matching lines @@
                          was_blocked);
 }
 
 content::ColorChooser* ChromeAppDelegate::ShowColorChooser(
     content::WebContents* web_contents,
     SkColor initial_color) {
   return chrome::ShowColorChooser(web_contents, initial_color);
 }
 
 void ChromeAppDelegate::RunFileChooser(
-    content::WebContents* tab,
+    content::RenderFrameHost* render_frame_host,
     const content::FileChooserParams& params) {
-  FileSelectHelper::RunFileChooser(tab, params);
+  FileSelectHelper::RunFileChooser(render_frame_host, params);
 }
 
 void ChromeAppDelegate::RequestMediaAccessPermission(
     content::WebContents* web_contents,
     const content::MediaStreamRequest& request,
     const content::MediaResponseCallback& callback,
     const extensions::Extension* extension) {
   MediaCaptureDevicesDispatcher::GetInstance()->ProcessMediaAccessRequest(
       web_contents, request, callback, extension);
 }
@@ skipping 66 matching lines @@
                                 const content::NotificationDetails& details) {
   switch (type) {
     case chrome::NOTIFICATION_APP_TERMINATING:
       if (!terminating_callback_.is_null())
         terminating_callback_.Run();
       break;
     default:
       NOTREACHED() << "Received unexpected notification";
   }
 }