Revert of H264 HW encode using MediaFoundation

media/base/win/mf_helpers.cc

Index: media/base/win/mf_helpers.cc
diff --git a/media/base/win/mf_helpers.cc b/media/base/win/mf_helpers.cc
deleted file mode 100644
index e5df966ae2c029f9eb05437cec82f3b057a0f30e..0000000000000000000000000000000000000000
--- a/media/base/win/mf_helpers.cc
+++ /dev/null
@@ -1,57 +0,0 @@
-// 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 "media/base/win/mf_helpers.h"
-
-namespace media {
-
-namespace mf {
-
-void LogDXVAError(int line) {
-  LOG(ERROR) << "Error in dxva_video_decode_accelerator_win.cc on line "
-             << line;
-}
-
-IMFSample* CreateEmptySampleWithBuffer(uint32_t buffer_length, int align) {
-  CHECK_GT(buffer_length, 0U);
-
-  base::win::ScopedComPtr<IMFSample> sample;
-  HRESULT hr = MFCreateSample(sample.Receive());
-  RETURN_ON_HR_FAILURE(hr, "MFCreateSample failed", NULL);
-
-  base::win::ScopedComPtr<IMFMediaBuffer> buffer;
-  if (align == 0) {
-    // Note that MFCreateMemoryBuffer is same as MFCreateAlignedMemoryBuffer
-    // with the align argument being 0.
-    hr = MFCreateMemoryBuffer(buffer_length, buffer.Receive());
-  } else {
-    hr =
-        MFCreateAlignedMemoryBuffer(buffer_length, align - 1, buffer.Receive());
-  }
-  RETURN_ON_HR_FAILURE(hr, "Failed to create memory buffer for sample", NULL);
-
-  hr = sample->AddBuffer(buffer.get());
-  RETURN_ON_HR_FAILURE(hr, "Failed to add buffer to sample", NULL);
-
-  buffer->SetCurrentLength(0);
-  return sample.Detach();
-}
-
-MediaBufferScopedPointer::MediaBufferScopedPointer(IMFMediaBuffer* media_buffer)
-    : media_buffer_(media_buffer),
-      buffer_(nullptr),
-      max_length_(0),
-      current_length_(0) {
-  HRESULT hr = media_buffer_->Lock(&buffer_, &max_length_, &current_length_);
-  CHECK(SUCCEEDED(hr));
-}
-
-MediaBufferScopedPointer::~MediaBufferScopedPointer() {
-  HRESULT hr = media_buffer_->Unlock();
-  CHECK(SUCCEEDED(hr));
-}
-
-}  // namespace mf
-
-}  // namespace media