[Mojo Video Capture] Cleanup naming of classes/files in services/video_capture

services/video_capture/receiver_mojo_to_media_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/receiver_mojo_to_media_adapter.h"
 
 #include "media/mojo/common/media_type_converters.h"
 #include "media/mojo/common/mojo_shared_buffer_video_frame.h"
 
 namespace video_capture {
 
 ReceiverMojoToMediaAdapter::ReceiverMojoToMediaAdapter(
-    mojom::VideoFrameReceiverPtr receiver)
+    mojom::ReceiverPtr receiver)
     : receiver_(std::move(receiver)) {}
 
 ReceiverMojoToMediaAdapter::~ReceiverMojoToMediaAdapter() = default;
 
 void ReceiverMojoToMediaAdapter::OnIncomingCapturedVideoFrame(
     std::unique_ptr<media::VideoCaptureDevice::Client::Buffer> buffer,
     scoped_refptr<media::VideoFrame> frame) {
   // O: |frame| should already be backed by a MojoSharedBufferVideoFrame
   //    assuming we have used the correct buffer factory with the pool.
   auto video_frame_ptr = media::mojom::VideoFrame::From(std::move(frame));
@@ skipping 10 matching lines @@
 
 void ReceiverMojoToMediaAdapter::OnBufferDestroyed(int buffer_id_to_drop) {
   // Nothing to do here.
   // This call is only needed for clients who need to explicitly share buffers
   // with other processes and keep track of which buffers the buffer pool is
   // no longer going to reuse/resurrect.
   // In the world of Mojo, we do not need to share buffers explicitly.
 }
 
 }  // namespace video_capture