Move ChromeOS login media access logic into a MediaAccessHandler

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 39 matching lines @@
   // possible use after free.
   DCHECK_CURRENTLY_ON(BrowserThread::UI);
   notifications_registrar_.Add(this,
                                content::NOTIFICATION_WEB_CONTENTS_DESTROYED,
                                content::NotificationService::AllSources());
 }
 
 PermissionBubbleMediaAccessHandler::~PermissionBubbleMediaAccessHandler() {}
 
 bool PermissionBubbleMediaAccessHandler::SupportsStreamType(
+    content::WebContents* web_contents,
     const content::MediaStreamType type,
     const extensions::Extension* extension) {
 #if defined(OS_ANDROID)
   return type == content::MEDIA_DEVICE_VIDEO_CAPTURE ||
          type == content::MEDIA_DEVICE_AUDIO_CAPTURE ||
          type == content::MEDIA_DESKTOP_VIDEO_CAPTURE;
 #else
   return type == content::MEDIA_DEVICE_VIDEO_CAPTURE ||
          type == content::MEDIA_DEVICE_AUDIO_CAPTURE;
 #endif
@@ skipping 141 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());
 }