Almost done: ApplicationDelegate -> ApplicationImplBase conversion.

services/media/framework/parts/reader.h

 // 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.
 
 #ifndef SERVICES_MEDIA_FRAMEWORK_PARTS_READER_H_
 #define SERVICES_MEDIA_FRAMEWORK_PARTS_READER_H_
 
 #include <limits>
 #include <memory>
 
-#include "mojo/public/cpp/application/application_impl.h"
 #include "services/media/framework/result.h"
 
 namespace mojo {
 namespace media {
 
 // Abstract base class for objects that read raw data on behalf of demuxes.
 class Reader {
  public:
   using DescribeCallback =
       std::function<void(Result result, size_t size, bool can_seek)>;
@@ skipping 14 matching lines @@
   virtual void ReadAt(size_t position,
                       uint8_t* buffer,
                       size_t bytes_to_read,
                       const ReadAtCallback& callback) = 0;
 };
 
 }  // namespace media
 }  // namespace mojo
 
 #endif  // MOJO_SERVICES_MEDIA_READER_H_