Merge ScreenCapturerWinDirectx::frames_ and contexts_

webrtc/modules/desktop_capture/win/dxgi_adapter_duplicator.cc

 /*
  *  Copyright (c) 2016 The WebRTC project authors. All Rights Reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
@@ skipping 13 matching lines @@
 
 namespace {
 
 bool IsValidRect(const RECT& rect) {
   return rect.left >= 0 && rect.top >= 0 && rect.right > rect.left &&
          rect.bottom > rect.top;
 }
 
 }  // namespace
 
-DxgiAdapterDuplicator::Context::Context() = default;
-DxgiAdapterDuplicator::Context::Context(const Context& other) = default;
-DxgiAdapterDuplicator::Context::~Context() = default;
-
 DxgiAdapterDuplicator::DxgiAdapterDuplicator(const D3dDevice& device)
     : device_(device) {}
 DxgiAdapterDuplicator::DxgiAdapterDuplicator(DxgiAdapterDuplicator&&) = default;
 DxgiAdapterDuplicator::~DxgiAdapterDuplicator() = default;
 
 bool DxgiAdapterDuplicator::Initialize() {
   if (DoInitialize()) {
     return true;
   }
   duplicators_.clear();
@@ skipping 103 matching lines @@
 int64_t DxgiAdapterDuplicator::GetNumFramesCaptured() const {
   int64_t min = INT64_MAX;
   for (const auto& duplicator : duplicators_) {
     min = std::min(min, duplicator.num_frames_captured());
   }
 
   return min;
 }
 
 }  // namespace webrtc