Spec compliant video constraints for getUserMedia behind flag.

content/renderer/media/video_track_adapter.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 "content/renderer/media/video_track_adapter.h"
 
 #include <algorithm>
 #include <limits>
 #include <memory>
 #include <string>
@@ skipping 306 matching lines @@
   keep_frame_counter_ += max_frame_rate_ / frame_rate_;
   if (keep_frame_counter_ >= 1) {
     keep_frame_counter_ -= 1;
     // Keep the frame.
     return false;
   }
   DVLOG(3) << "Drop frame. Input frame_rate_ " << frame_rate_ << ".";
   return true;
 }
 
+VideoTrackAdapterSettings::VideoTrackAdapterSettings()
+    : VideoTrackAdapterSettings(std::numeric_limits<int>::max(),
+                                std::numeric_limits<int>::max(),
+                                0.0,
+                                std::numeric_limits<double>::max(),
+                                0.0) {}
+
 VideoTrackAdapterSettings::VideoTrackAdapterSettings(int max_width,
                                                      int max_height,
                                                      double min_aspect_ratio,
                                                      double max_aspect_ratio,
                                                      double max_frame_rate)
     : max_width(max_width),
       max_height(max_height),
       min_aspect_ratio(min_aspect_ratio),
       max_aspect_ratio(max_aspect_ratio),
       max_frame_rate(max_frame_rate) {
@@ skipping 182 matching lines @@
   }
 
   io_task_runner_->PostDelayedTask(
       FROM_HERE, base::Bind(&VideoTrackAdapter::CheckFramesReceivedOnIO, this,
                             set_muted_state_callback, frame_counter_),
       base::TimeDelta::FromSecondsD(kNormalFrameTimeoutInFrameIntervals /
                                     source_frame_rate_));
 }
 
 }  // namespace content