Change MediaStreamDevicesController::RequestPermissions to use the requesting WebContents

chrome/browser/media/webrtc/permission_bubble_media_access_handler.cc

 // Copyright 2015 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/media/webrtc/permission_bubble_media_access_handler.h"
 
 #include <utility>
 
 #include "base/metrics/field_trial.h"
 #include "chrome/browser/media/webrtc/media_permission.h"
@@ skipping 124 matching lines @@
   if (request.video_type == content::MEDIA_DESKTOP_VIDEO_CAPTURE) {
     ScreenCaptureInfoBarDelegateAndroid::Create(
         web_contents, request,
         base::Bind(&PermissionBubbleMediaAccessHandler::OnAccessRequestResponse,
                    base::Unretained(this), web_contents));
     return;
   }
 #endif
 
   MediaStreamDevicesController::RequestPermissions(
-      web_contents, request,
+      request,
       base::Bind(&PermissionBubbleMediaAccessHandler::OnAccessRequestResponse,
                  base::Unretained(this), web_contents));
 }
 
 void PermissionBubbleMediaAccessHandler::UpdateMediaRequestState(
     int render_process_id,
     int render_frame_id,
     int page_request_id,
     content::MediaStreamType stream_type,
     content::MediaRequestState state) {
@@ skipping 56 matching lines @@
 
 void PermissionBubbleMediaAccessHandler::Observe(
     int type,
     const content::NotificationSource& source,
     const content::NotificationDetails& details) {
   DCHECK_CURRENTLY_ON(BrowserThread::UI);
   DCHECK_EQ(content::NOTIFICATION_WEB_CONTENTS_DESTROYED, type);
 
   pending_requests_.erase(content::Source<content::WebContents>(source).ptr());
 }