Clarify resolution change behaviors of video capture devices

content/renderer/media/video_capture_impl.cc

 // Copyright (c) 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.
 //
 // Notes about usage of this object by VideoCaptureImplManager.
 //
 // VideoCaptureImplManager access this object by using a Unretained()
 // binding and tasks on the IO thread. It is then important that
 // VideoCaptureImpl never post task to itself. All operations must be
 // synchronous.
@@ skipping 85 matching lines @@
   } else if (!device_id_) {
     clients_pending_on_filter_[client_id] = client_info;
   } else {
     // Note: |state_| might not be started at this point. But we tell
     // client that we have started.
     state_update_cb.Run(VIDEO_CAPTURE_STATE_STARTED);
     if (state_ == VIDEO_CAPTURE_STATE_STARTED) {
       clients_[client_id] = client_info;
       // TODO(sheu): Allowing resolution change will require that all
       // outstanding clients of a capture session support resolution change.
-      DCHECK_EQ(params_.allow_resolution_change,
-                params.allow_resolution_change);
+      DCHECK_EQ(params_.resolution_change_policy,
+                params.resolution_change_policy);
     } else if (state_ == VIDEO_CAPTURE_STATE_STOPPING) {
       clients_pending_on_restart_[client_id] = client_info;
       DVLOG(1) << "StartCapture: Got new resolution "
                << params.requested_format.frame_size.ToString()
                << " during stopping.";
     } else {
       clients_[client_id] = client_info;
       if (state_ == VIDEO_CAPTURE_STATE_STARTED)
         return;
       params_ = params;
@@ skipping 316 matching lines @@
   ClientInfoMap::iterator it = clients->find(client_id);
   if (it != clients->end()) {
     it->second.state_update_cb.Run(VIDEO_CAPTURE_STATE_STOPPED);
     clients->erase(it);
     found = true;
   }
   return found;
 }
 
 }  // namespace content