Remove the MessageLoop::DestructionObserver from mojo bindings.

services/video_capture/device_factory_media_to_mojo_adapter.cc

 // Copyright 2016 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 "services/video_capture/device_factory_media_to_mojo_adapter.h"
 
 #include <sstream>
 
 #include "base/logging.h"
 #include "base/memory/ptr_util.h"
+#include "base/stl_util.h"
 #include "base/strings/stringprintf.h"
 #include "media/capture/video/fake_video_capture_device.h"
 #include "mojo/public/cpp/bindings/strong_binding.h"
 #include "services/video_capture/device_media_to_mojo_adapter.h"
 #include "services/video_capture/public/cpp/capture_settings.h"
 
 namespace video_capture {
 
 DeviceFactoryMediaToMojoAdapter::ActiveDeviceEntry::ActiveDeviceEntry() =
     default;
@@ skipping 112 matching lines @@
       [&device_id](const media::VideoCaptureDeviceDescriptor& descriptor) {
         return descriptor.device_id == device_id;
       });
   if (descriptor_iter == descriptors.end())
     return false;
   *descriptor = *descriptor_iter;
   return true;
 }
 
 }  // namespace video_capture